· Web viewA water heater has a diameter of 18 inches. It sits in a drain pan that has a diameter...

8.1A(P): Apply mathematics to problems arising in everyday life, society, and the workplace.

8.1B(P): Use a problem-solving model that incorporates analyzing given information, formulating a plan or strategy, determining a solution, justifying the solution, and evaluating the problem-solving process and the reasonableness of the solution.

8th Grade Math Released STAAR Items by New TEKS

1. 2013 #40:Pentagon PQRST below models one side of a building.

The sum of the interior angles of the pentagon is 540, the measure of angle R is 100, and ∠Q≅∠S. What is the measure of ∠Q?

F. 92G. 130H. 108J. Not here

2. 2014 #27:Sakura has a birdhouse with rectangular walls, a rectangular bottom, and a rectangular entry, like the one modeled below.

She will paint the four outside walls but not the bottom or the roof of the birdhouse. What is the area that Sakura will paint?

A. 320 in.2

B. 160 in.2

C. 300 in.2

D. 140 in.2

3. 2013 #22:Pia spends from $40 to $50 at the grocery store each week. She spends about 20% of the amount on vegetables and fruit. Which of the following is a reasonable estimate of the amount of money Pia will spend on vegetables and fruit at the grocery store during the next 3 weeks?

F. $130G. $26H. $54I. $9

1

8.2B(S): Approximate the value of an irrational number, including π and square roots of numbers less than 225, and locate that rational number approximation on a number line.

8th Grade Math Released STAAR Items by New TEKS4. 2014 #33:

A baseball coach bought some bats and gloves for the school’s baseball team. The bats cost $20 to $35, and the gloves cost $30 to $60. Which of these does NOT represent a reasonable total purchase price for 15 bats and 12 gloves?

A. $1,350B. $890C. $1,200D. $705

5. 2013 – 7th Gr #30:The model below has an area of 16 square units.

Which expression represents the side length of the model in units?F. √64G. √4H. √16J. √8

6. 2014 #24:Carlos has a square tablecloth with a total area of 48 square feet. Which measurement is closest to the length of each side of the tablecloth in feet?

F. 9.8 ftG. 5.0 ftH. 12.0 ftJ. 6.9 ft

7. 2013 #36:The average distance from Earth to the sun is about 9.3×107 miles. The average distance from Mars

to the sun is about 1.4×108 miles. When both planets are at their average distance from the sun, how much farther is Mars from the sun than Earth?

F. 79,000,000 miG. 47,000,000 miH. 107,000,000 mi

8.2C(S): Convert between standard decimal notation and scientific notation.

2

8.2D(R): Order a set of real numbers arising from mathematical and real-world contexts.

8th Grade Math Released STAAR Items by New TEKSJ. 233,000,000 mi

8. 2013 #8:Which numbers from this list are less than −0.94

−1516

,0.24 ,−2.23 ,97 % ,−2 25,−0.95

F.−1516

,−2.23 , and −0.95

G. −2.23 ,−2 25, and −0.95

H. 0.24 ,−1516, and −0.95

J.−1516

,0.24 , and -2.23

9. 2013 #30:There are four students working on an assignment in a class. Mike has completed

19 of the

assignment, Gwen has completed 11% of the assignment, Jorge has completed 0.12 of the

assignment, and Tai has completed 18 of the assignment. Which of the following lists the

students in order from least to greatest by the amount of the assignment they completed?

F. Gwen, Mike, Jorge, TaiG. Tai, Jorge, Mike, GwenH. Gwen, Jorge, Mike, Tai

J. Tai, Mike, Gwen, Jorge

10. 2013 #56:The water levels of five Texas lakes were measured on the same day in 2010. The table below shows the number of feet above or below normal level for each lake.

3

Lake Number of Feet Above or Below Normal Level

Conroe 0.10Amistad −2.65

Richland Chambers 0.16Possum Kingdom −1.43

Travis 0.07


Which list shows the numbers in the table from greatest to least?F. −2.65 ,−1.43 ,0.16 ,0.10 ,0.07G. 0.16 ,0.10 ,0.07 ,−1.43 ,−2.65H. 0.16 ,0.10 ,0.07 ,−2.65,−1.43J. −2.65 ,−1.43 ,0.07 ,0.10 ,0.16

11. 2014 #19:During one month, four trees at a nursery increased in height at the rates shown below.

8 % , 112,16 % , 1

20

Which list shows these rates in order from greatest to least?

A.1

20,16% , 1

12,8%

B. 16 % , 112,8 % , 1

20

C.1

20,8% , 1

12,16 %

D. 16 % ,8% , 112, 120

12. 2014 #42:The money in Juan’s savings account earns 1

14

% interest. Which value is less than 114

%?

F.54

G. 0.125

H.1

80

J. 0.0114

13. 2014 #50:Which list shows the numbers below in order from least to greatest?

4

8.5A(S): Represent linear proportional situations with tables, graphs, and equations in the form of y = kx.


−6 12,7.25 , 46

7,6 1

4,−5.58 , 84

9

F. −6 12,−5.58 ,6 1

4, 46

7,7.25 , 84

9

G. −5.58 ,6 14, 46

7,−6 1

2, 84

9,7.25

H. −6 12,6 1

4,−5.58 , 46

7,7.25 , 84

9

J. −5.58 ,−6 12,6 1

4, 46

7,7.25 , 84

9

14. 2013 – Alg 1 #18:The population of a town is currently 9,000. The function p=9,000+8 t2 can be used to estimate p, the population of the town t years from now. Based on this function, which statement is true?

F. The population of the town is increasing at a constant rate.G. The population of the town will reach 10,000 between 11 and 12 years from now.H. The population of the town will increase by 256 people two years from now.F. The population of the town will increase and then decrease.

15. 2013 #18:The total number of washcloths, y, contained in x packages can be represented by the equation y=8x . Which of the following graphs best represents this situation?

8.4B(R): Graph proportional relationships, interpreting the unit rate as the slope of the line that models the relationship.

5


16. 2013 #26:Ramona is walking 10,000 feet for a fundraiser. She walks at a rate of 270 feet per minute. This situation is modeled by the equation below, where d represents the remaining number of feet Ramona has to walk and t represents the number of minutes she has already walked.

d=10,000−270 tWhich table shows only values that satisfy this equation?

17. 2013 #52: A hotel charges guests $19.75 a day to rent 5 video games. At this rate, which expression can be used to determine the charge for renting 9 video games for 1 day at this hotel?

F.19.75

5(9)

6


G.5

19.75(9)

H.23.70

5(9)

J.5

23.70(9)

18. 2014 #48:Abdul is 5 feet tall. Which equation can be used to determine h, Abdul’s height in centimeters, if 1 inch is equal to 2.54 centimeters?

F. h=2.54 (5 )

G. h= 12.54

(5)(12)

H. h=2.54(5)(12)

J. h= 12.54 (5)

19. 2014 #52:

John is having a new deck built. He paid $485 for the required materials, and he will pay his brother $25 an hour to build the deck. Which table shows the relationship between h, the number of hours John’s brother works, and c, the total cost of the project?

8.5B(S): Represent linear non-proportional situations with tables, graphs, and equations in the form of y = mx + b, where b ≠ 0.

7


20. 2013 #35: Which equation best describes a relationship between x and y in the table below?

A. y=3 x+5

B. y=15x+3

C. y=13x+5

D. y=x+5

21. #22: Which graph best represents the equation y=1.4 x+2 ?

x y0 56 7

12 915 10

8


22. 2014 #44:Leonard had t tickets for the rides at a county fair. He kept 9 of the tickets and gave an equal number of the remaining tickets to 6 of his friends. There were no tickets left over. Which equation can be used to find f, the number of tickets Leonard gave to each of his friends?

F. f= t6+9

G. f= t+96

H. f= t6−9

J. f= t−96

23. 2013 #1:The graph below shows the balance remaining on Jason’s loan after he makes each payment.

8.5E(S): Solve problems involving direct variation.

Balance Remaining(dollars)

Jason’s Loan Balance

9


Based on this graph, what will be the balance remaining on Jason’s loan after he makes the 12th payment?

A. $750B. $150C. $450D. $300

24. 2013 #12: Mr. Martinez has 3 ice chests. He is placing 14 lunches in each ice chest. Each lunch contains a sandwich, a bag of chips, and a drink. About 55% of these lunches contain a ham sandwich. Which of the following is closest to the number of lunches that contain a ham sandwich?

F. 23G. 8H. 17J. 9

25. 2013 #24:A company conducts research to predict how a new advertisement affects sales of a product. The equation below can be used to determine n, the number of people who buy the product if r people read the advertisement.n=0.08 r+7,400 If 7,496 people bought the product last week, how many people read the

advertisement?F. 186,200G. 600H. 1,200J. 93.700

26. 2013 #34:According to the Texas Parks and Wildlife Department, there are about 40 white-tailed deer per square mile in each of 35 Texas counties. A rectangular area on a ranch in one of these counties measures 2.25 miles by 6.7 miles. Which of the following is closest to the number of white-taileddeer expected to live in this rectangular area?

F. 480G. 840H. 720J. 600

27. 2013 #45:A Package of 5 erasers costs $0.39. At this rate, how much would 60 erasers cost, in dollars and cents?

Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.

Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket Ticket

10

Store Sale


Tickets were sold at four different gates of a high school football stadium. The graph below shows the percent of the total tickets sold at each gate during a recent game.

If 90 tickets were sold at Gate C, what was the total number of tickets sold?A. 750B. 1,080C. 360D. 1,168

30. 2013 #53:A store manager discounted the prices of several items during a sale. The original price and the sale price of each item are shown in the table below.

Original Price

Sale Price

$30 $24$40 $32$50 $40$60 $48$70 $56

Based on the data in the table, what would be the sale price of an item that had an original price of $85?

A. $79B. $64C. $68D. $71

31. 2014 #1:Claudia is making a gelatin dessert for a party. She plans on making 12 servings for every 5 people. If each pan Claudia uses to make the dessert holds 8 servings, what is the minimum number of these pans that she needs in order to make enough to feed 10 people?

A. 4B. 2C. 3D. 5

32. 2014 #15:Anita has a collection of postage stamps from different countries. She has one book that contains 35 stamps. She has a second book that has 7 stamps on each page. The equation below can be used to find t, the total number of postage stamps Anita has if the second book has p pages.

t=35+7 p

11

8th Grade Math Released STAAR Items by New TEKSHow many postage stamps does Anita have in all if the second book has 14 pages?Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.

33. 2014 #20:The table below shows the cost of mailing packages that weigh different amounts.

If the cost continues to increase as shown in the table, how much will it cost to mail a package that weighs exactly 11 ounces?

F. $2.87G. $4.87H. $3.04

J. $5.87

34. 2014 #29:Jake has two summer jobs. The table below shows how many hours he worked at the two jobs last week and his total earnings from each.

This week Jake is scheduled to work 11 hours as a cashier and 17 hours as a grocery stocker. Based on the information in the table, what will be the total amount he earns from the two jobs if he works all the scheduled hours this week?

A. $281.75B. $252.00C. $271.25D. $280.00

35. 2014 #34:Sal purchased some art supplies and card stock in order to make greeting cards. The graph below shows the relationship between the number of cards Sal makes and the total cost of the materials used to make the cards.

12


Based on the graph, what will be the total cost of making 25 greeting cards?

F. $12.50G. $50.00H. $52.50J. $15.00

36. 2014 #36:A community center is collecting blankets. The director of the center has asked 135 families to donate 3 blankets each. If 20% to 40% of the families donate 3 blankets each, which of these could be the number of blankets the center collects from these families?

F. 240G. 50H. 110J. 170

37. 2014 #47:Dominic used the equation below to find d, the amount in dollars he would spend on gasoline to drive a distance of m miles.

d= m25

(3.5)

Based on this equation, how much would Dominic spend on gasoline to drive a distance of 180 miles?

A. $25.20B. $21.00C. $24.50D. $28.00

38. 2013 – Alg 1 #42:The dishwasher at a restaurant is loaded with the same number of dishes every time it is used. The table below shows the total number of dishes washed as a function of the number of times the dishwasher is used.

8.5G(R): Identify functions using sets of ordered pairs, tables, mappings, and graphs.

13


Based on the data in the table, what is the total number of dishes that will have been washed when the dishwasher is used 9 times?Record your answer and fill in the bubbles on your answer document.

39. 2013 – Alg 1 #49:Which set of ordered pairs contains only points that are on the graph of the function y=12−3 x?

A. { (−3 ,−27 ) , (0 ,0 ) , (6 ,54 ) }

B. {(−18 ,10 ) , (−6 ,6 ) , (18 ,−2 ) }C. {¿5, 27), (-1, 15), (8, -12)}

D. {¿7, -9), (-4, 0), (2, 18)}

40. 2013 #21:A store sells a 5-pound bag of apples for $4.60. Which of the following is NOT an equivalent price per pound of apples?

A. A 20-pound bag for $18.40B. A 12-pound bag for $11.04C. A 7-pound bag for $6.44D. A 15-pound bag for $9.20

41. 2013 #47:A painter earns $119.00 for 7 hours of work. Which of the following is an equivalent rate?

A. $120.50 for 8 12 hours of work

B. $110.50 for 6 12 hours of work

C. $178.50 for 7 12 hours of work

D. $153.50 for 9 12 hours of work

42. 2013 #51: A 7-inch candle burns at a rate of 2 inches an hours. Which equation represents the relationship between y, the height of the candle in inches, and x, the number of hours the candle burns?

A. y=2x+7B. y=7−2 xC. y=2−7 xD. y=7 x+2

8.5H(S): Identify examples of proportional and non-proportional functions that arise from mathematical and real-world problems.

14


A can of juice contains 175 calories per 2.5 servings. Which of the following is NOT an equivalent number of calories per serving?

A. 280 calories per 4 servingsB. 910 calories per 13 servingsC. 525 calories per 8 servingsD. 630 calories per 9 servings

44. 2014 #49:Jessica skated 4 laps in 82 seconds. Which of the following is an equivalent rate of skating?

A. 6 laps in 120 secondsB. 10 laps in 205 secondsC. 6 laps in 130 secondsD. 10 laps in 215 seconds

45. 2013 – Alg 1 #7:A graph is shown below.

Which of the following equations are represented by the graph?

I. y=−32x−2

II. 2 x−3 y=6III. y=(x−2)(x−3)

IV. y−2=23(x−6)

A. II and IVB. I and IIIC. II and IIID. I and IV

46. 2013 – Alg 1 #8:Which table shows the same relationship as y=−x2+3 x?

F.

8.5I(R): Write an equation in the form y = mx + b to model a linear relationship between two quantities using verbal, numerical, tabular, and graphical representations.

15


G.

H.

J.

47. 2014 #17:The graph models the value of a machine over a 10-year period.

Which equation best represents the relationship between x, the age of the machine in years, and y, the value of the machine in dollars over this 10-year period?

A. y=−0.002 x+2,500B. y=−500x+8,000C. y=500 x+8,000D. y=0.002 x+2,500

8.6A(S): Describe the volume formula V = Bh of a cylinder in terms of its base area and its height.

16

8th Grade Math Released STAAR Items by New TEKS48. 2013 – 7th Gr #49:

The cylindrical toothbrush holder modeled below has a diameter of 6.5 centimeters and a height of 9 centimeters. The shaded part represents the base of the cylinder.

A formula for finding the volume of a cylinder is V=Bh. Which equation can be used to find B, the area of this cylinder’s base in square centimeters?

A.

B.

C.

D.

49. – 7th Gr #52:A hatbox in the shape of a cylinder is modeled below. The diameter of the cylinder is 24 inches. The height of the cylinder is 8 inches.

The volume of a cylinder can be found by using the formula V=Bh. Which expression can be used to determine B, the area of the base of this hatbox in square inches?

F. (24)2π

G. (12)2π

H. 82 ∙12

J. 122 ∙8

8.6C(S): Use models and diagrams to explain the Pythagorean theorem.

17


50. 2013 #48:Which group of three squares will form a right triangle when joined at their vertices?

51. 2014 #43:In the diagram below, RSTU is a rectangle, and the two shaded regions are squares.

If the length of SRis 4 m and the length of ST is 8 m, what is the length of PQ in meters?

A. √80 mB. √24 mC. √68 mD. √144 m

8.7A(R): Solve problems involving the volume of cylinders, cones, and spheres.

18


52. 2013 #11:Juanita covered the outside of a gift box shaped like a rectangular prism with paper. The box is 3.2 feet long, 2.1 feet wide and 2.7 feet high. Which of the following is closest to the total surface area of this box?

A. 34 ft2

B. 42 ft2

C. 39ft2

D. 18ft2

53. 2013 #41:Yadira made a wooden cone with a radius of 1.9 inches and a height of 15 inches. Which of the following is the best estimate of the volume of this cone?

A. 60 in.3

B. 30 in.3

C. 180 in.3

D. 90 in.3

54. 2014 #14:A paper drinking cup in the shape of a cone has a height of 10 centimeters and a diameter of 8 centimeters. Which of the following is closest to the volume of the cup in cubic centimeters?

F. 167 cm3

G. 209 cm3

H. 670 cm3

J. 502 cm3

55. 2014 #38:A ball shaped like a sphere has a radius of approximately 2

18 inches. Which of the following is the

best estimate of the volume of the ball?

F. 32 in.3

G. 11 in.3

H. 25 in.3

J. 17 in.3

19


56. 2013 #33:A water heater has a diameter of 18 inches. It sits in a drain pan that has a diameter of 22 inches and a height of 2 inches, as modeled in the diagram below.

Water that leaks out of the water heater sits in the drain pan. Which of the following is closest to the maximum amount of water that the drain pan can contain with the water heater in the position shown?

A. 13 in.3

B. 1,005 in.3

C. 251 in.3

D. 50 in.3

57. 2014 #23:The roof of a house is in the shape of a square pyramid. The slant height of the pyramid is 17 feet, and the length of each side of the square is 30 feet. What is the lateral surface area of the pyramid in square feet?

A. 1,920 ft2

B. 2,040 ft2

C. 1,020 ft2

D. 1,410 ft2

58. 2013 #7:The diagram below represents the side view of a bike ramp.Which of the following is closest to the value of x?

A. 37 in.B. 32 in.C. 25 in.

8.7B(R): Use previous knowledge of surface area to make connections to the formulas for lateral and total surface area and determine solutions for problems involving rectangular prisms, triangular prisms, and cylinders.

8.7C(S): Use the Pythagorean Theorem and its converse to solve problems.

20

8th Grade Math Released STAAR Items by New TEKSD. 20 in.

59. 2013 #23:A 10-foot ladder is leaning against a wall. The bottom of the ladder is 4 feet from the base of the wall, as shown below.

Which of the following is closest to the distance from the top of the ladder to the base of the wall?

A. 9 ftB. 11 ftC. 6 ftD. 14 ft

60. 2013 #54:Leland swam from the dock east 26 meters. He turned and swam another 10 meters, as shown in the diagram below.

What is the value of x, the distance Leland swam to return to the dock?

F. 36 mG. 24 mH. 4 mJ. 16 m

21


61. 2014 #9:The drawing below shows a side view of a picture frame on Mary’s desk.

Which of the following is closest to the length of the frame support?

A. 20 cmB. 15 cmC. 12 cmD. 17 cm

62. 2014 #18: Gwendolyn placed a 10-foot ladder against the side of her house so that the base of the ladder was 3 feet from the base of the house, as shown in the diagram below.

Which measurement in feet is closest to d, the distance from the top of the ladder to the ground?

F. 10.4 ftG. 7.0 ft

22

8th Grade Math Released STAAR Items by New TEKSH. 6.5 ft.

J. 9.5 ft

63. 2014 #32:

To get from home to work, Felix can either take a bike path through the rectangular park or ride his bike along two sides of the park.

How much farther would Felix travel by riding along two sides of the park than he would by taking the path through the park?

F. 1.7 miG. 0.6 miH. 2.5 miJ. 0.1 mi

64. 2014 #53: A side view of a desk telephone is shown below.

Which of the following is closest to the value of x?A. 2 cmB. 10 cmC. 20 cm

D. 6 cm

65. 2013 #39: In the drawing below, the dashed line segment represents the distance across a pond.What is the actual distance, in yards, across the pond?

8.7D(S): Determine the distance between two points on a coordinate plane using the Pythagorean theorem.

23

8th Grade Math Released STAAR Items by New TEKSRecord your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.

66. 2013 – Alg 1 #29A store manager begins each shift with the same total amount of money. She keeps $200 in a safe and distributes the rest equally to the 5 cashiers in the store. This situation can be represented by

the function y=( x−200)5

. What does the variablex represent in this situation?

A. The total amount of money the manager has at the beginning of a shift.B. The total amount of money the manager has at the end of a shift.C. The amount of money each cashier has at the beginning of a shift.D. The amount of money each cashier has at the end of a shift.

67. 2013 – Alg 1 #45An architect is designing an office building with n floors that will have an FM radio antenna 15.85 m tall on its roof. Each floor of the building will be 3.9 m high. Which function can be used to find the total height of the building in meters, including the FM antenna?

A. h (n )=15.85n+3.9B. h (n )=3.9n+15.85C. h (n )=3.9n−15.85D. h (n )=19.75n

68. 2013 – Alg 1 #52If y=−4

5x−2, what is the value of x when y=−9?

F.−35

4

G.−55

4

H.354

J.554

69. 2014 – Alg 1 #14A student bought concert tickets online. The total cost, c in dollars of t tickets can be found using the function below.

c=24.50t+9.50

8.8A(S): Write one-variable equations or inequalities with variables on both sides that represent problems using rational number coefficients and constants.

24


If the student spent a total of $83 on tickets, how many tickets did he buy?

Record your answer and fill in the bubbles on your answer document.

70. 2014 – Alg 1 #32An online music service lets customers download an unlimited number of songs for $0.25 each after paying a monthly membership fee of $5.00. The total amount of money a customer spends on music in dollars in a single month can be found using the function y=0.25x+5. What does the

variable x represent in this function?F. The total amount of money the customer spends on music each month.G. The number of songs the customer downloads each month.H. The number of customers that use the music service.J. The cost of downloading one song.

71. 2013 – Alg 1 #4A family will travel 350 miles from their house in order to reach Dallas, TX. Which inequality can be used to find all possible values of t, the time it will take this family to reach Dallas in hours, if they travel at an average speed of at least r miles per hour?

F. t ≤350 r

G. t> r350

H. t ≤ 350r

J. t>350 r2

72. 2014 – Alg 1 #52A tennis player broke the old record for the most matches won in a tournament by at least 2 matches. Which inequality can be used to find all possible values of t, the number of matches the player won, in terms or r, the old record?

F. t ≤ r−2

G. t ≥2 r

8.8B(S): Write a corresponding real-world problem when given a one-variable equation or inequality with variables on both sides of the equal sign using rational number coefficients and constants.

25


H. t ≤ r2

J. t ≥ r+2

73. 2014 – Alg 1 #49A candy company sells cases of chocolate bars. The company has fixed costs of $30,000, and each case of chocolate bars costs an additional $5 to make. The company sells each case for $10. The graph of a system of linear equations representing this company’s costs and revenue for manufacturing and selling x cases of chocolate bars is shown below.

How many cases of chocolate bars will this company need to sell in order for costs and revenue to be equal?

A. 3,500B. 6,000C. 35,000D. 60,000

74. 2013 – 7th Gr #12Triangle EFG is shown on the grid below.

8.10A(S): Generalize the properties of orientation and congruence of rotations, reflections, translations, and dilations of two-dimensional shapes on a coordinate plane.

8.9A(S): Identify and verify the values of x and y that simultaneously satisfy two linear equations in the form y = mx + b from the intersections of the graphed equations.

26


If triangle EFG is reflected across the y-axis to form triangle E’F’G’, which ordered pair represents the coordinates of F’?

F. (3 ,−1)G. (3 ,1)H. (−3 ,−1)J. (1 ,−3)

75. 2013 – 7th Gr #24The vertices of a triangle are (−1 ,5 ) , (−4 ,1 ) ,and (−3 ,6). Which grid represents the result of reflecting the triangle across the x-axis?

76. 2013 – 7th Gr #52Figure TUVW is shown below.

Which of the following shows the figure TUVW translated 3 units up and 2 units to the right to form the image T’U’V’W’?

27


77. 2013 – #25The graph of a figure is shown below.

Which graph represents the reflection of this figure across the x-axis?

78. 2014 – 7th Gr #10Sal graphed a circle on the grid below.

Sal translated the circle 6 units to the left and 7 units up. Which grid shows the result of this translation?

28


79. 2014 – 7th Gr #28:

Becca drew a figure on the coordinate grid below.

She then translated the figure 3 units to the left and 1 unit down. Which ordered pair represents a point that lies on this image?

F. (0 ,−4)G. (−1 ,−1)H. (−1 ,−3)J. (−2 ,−1)

80. 2014 – 7th Gr #48:Figure PQSR and figure P’Q’S’R’ are shown on the coordinate grid below.

29


Which statement describes how figure PQSR was transformed to form the image P’Q’S’R’?

F. A translation across the x-axisG. A reflection across the x-axisH. A translation across the y-axisJ. A reflection across the y-axis

81. 2014 #2:A figure is shown on the grid below.

Which graph best represents this figure after it has been translated 5 units up and 3 units to the right?

30


82. 2013 #46:A regular pentagon is dilated by a scale factor of

32 to create a new pentagon. Which of the

following statements is true?

F. The perimeter of the new pentagon is 94 the perimeter of the original pentagon.

G. The perimeter of the new pentagon is 92 the perimeter of the original pentagon.

H. The perimeter of the new pentagon is 152 the perimeter of the original pentagon.

J. The perimeter of the new pentagon is 32 the perimeter of the original pentagon.

83. 2014 #41:A cube is dilated by a scale factor of

34 to create a new cube. The surface area of the new cube is -

F.32 the surface area of the original cube.

G.2764 the surface area of the original cube.

H.916 the surface area of the original cube.

I.94 the surface area of the original cube.

8.10D(S): Model the effect on linear and area measurements of dilated two-dimensional shapes.

8.11A(S): Construct a scatterplot and describe the observed data to address questions of association such as linear, non-linear, and no association between bivariate data.

31


84. 2013 #50:The scatterplot below shows movie theaters with different numbers of screens and their average weekly attendance.

Based on the trend in the scatterplot, approximately how many people will be in attendance at a movie theater with 8 screens?

F. 90G. 105H. 85J. 140

85. 2013 – Alg 1 #38:A teacher collected data on 20 students for two different quizzes. The scatterplot below shows the relationship between the number of points scored on Quiz 1 and the number of points scored on Quiz 2.

Which statement describes the data?

F. The number of points scored on Quiz 2 was less than the number of points scored on Quiz 1 for any student who scored at least 50 points on Quiz 1.

G. The number of points scored on Quiz 2 was greater than the number of point scored onQuiz 1 for any student who scored 50 or fewer points on Quiz 1.

H. The number of points scored on Quiz 2 was greater than the number of points scored onQuiz 1 for any student who scored at least 50 points on Quiz 1.

32

8th Grade Math Released STAAR Items by New TEKSJ. The number of points scored on Quiz 2 was less than the number of points scored on

Quiz 1 for any student who scored 50 or fewer points on Quiz 1.

86. 2014 #54:The scatterplot below shows the relationship between the daily high temperature and the number of snow cones sold at a concession stand on that day.

Based on the scatterplot, approximately how many snow cones will be sold on a day when the high temperature is 82F?

F. 63G. 46H. 29J. 33

33

· Web viewA water heater has a diameter of 18 inches. It sits in a drain pan that has a diameter...

Documents

Transcript of · Web viewA water heater has a diameter of 18 inches. It sits in a drain pan that has a diameter...