Day 13 Assignment: Systems Pt 2

1.

What is the x-coordinate of the solution to the system of linear equations below?

4x + 5y = 82x − 3y = −18

F −4G −3H 3 J 4

2.

A restaurant sold a total of 418 large and small hamburgers during one day. Total hamburger sales were $1077. Large hamburgers sold for $3, and small hamburgers sold for $1.50. Which system of linear equations can be used to find l, the number of large hamburgers sold, and s, the number of small hamburgers sold?

A l + s = 1077 C 1.50l + 3s = 4183l + 1.50s = 418 l + s = 1077

 B l + s = 418 D l + s = 418

3l + 1.50s = 1077 1.50l + 3s = 1077

3.

What is the y intercept of 12y = 144x – 36?

4.

Which is the solution to this pair of linear equations?

5y − 2x = 63x − 2y = 13

A (3, −2)B (5, −2)C (7, 4)D (8, −4)

5.

An investor has a total of 45 one-ounce ingots, made of either gold or silver, worth $7636.50. The value of a gold ingot is $280.00, and the value of a silver ingot is $4.25. Which system of equations can be used to find g, the number of gold ingots, and s, the number of silver ingots?

A g − s = 45 C g + s = 45280.00g + 4.25s = 7636.50 4.25g + 280.00s = 7636.50

 B g + s = 45 D g − s = 7636.50

280.00g + 4.25s = 7636.50 280.00g + 4.25s = 45

6.

Does the following list of points represent a function?

( -3,4)(-4,3)(-2,5)(0,3)(2,4)(1,6)(3,5)(1,9)(5,7)

7.

Which of the following best represents the solution to the system of linear equations shown below?

3x − 8y = −196x + 3y = 22

8.

What is a slope that is perpendicular to

Y = 1/2x + 9?

a. ½b. 2c. -1/2d. -2

9.

What is the solution to 3x+ 4y = 11 and 5x – 2y = 1 ?

10.

11.

A city bus collected $780 in fares on one day. The price of a regular fare was $0.80, and the price of a discount fare was $0.40. If a total of 1200 people paid the fares on this bus, how many paid the regular fare?

A 1000 B 1950 C 600 D 750

12.

Parallel Lines have what type of solution?

13. Which of the below graphs is not a function?

a. b.c.