NAME DATE PERIOD

D Homework Practice

i « i Function Rules Use w o r d s and symbols t o describe the va lue of each t e r m as a f u n c t i o n of i t s p o s i t i o n . T h e n f i n d t h e va lue of the s i x t e e n t h t e r m i n the sequence.

1. Pos i t i on 2 3 ••'I 4 5 n

Value o f T e r m 8 12 16 20

2. Pos i t i on 8 9 10 11 n

Value of T e r m 14 15 16 17

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Pos i t i on 11 12 13 14 n

Value o f T e r m 4 5 6 7

P o s i t i o n 21 22 23 24 n

Value o f T e r m 12 13 14 15

D e t e r m i n e h o w the nex t t e r m i n each sequence can be f o u n d . T h e n f i n d the nex t t w o t e r m s i n the sequence.

6. 29, 25, 21, 17, ... 5. 3, 16, 29, 42, ...

F i n d the m i s s i n g n u m b e r i n each sequence.

7. 1.2,J.5, 5.8, 8.1, ...

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8 .5 , ,10, 12|, ... 9. 11.5, 9.4, , 5.2 7'/^ "7 3

11. MEASUREMENT There are 52 weeks i n 1 year. I n the space at the right, make a table and write a function rule relating the number of weeks to the number of years for 1, 2, 3, and n years. Then find Hana's age i n weeks i f she is 11 j^ears old.

12. COMPUTERS There are 8 bits of digital information in 1 byte. I n the space at the right, make a table and write a function rule relating the number of bits to the number of bytes for 1, 2, 3, and n bytes. Then find the number of bits in one kilobyte i f there are 1,024 bytes i n one kilobyte.

10.40, , 37| ,36 , ...

f ^BaiSiiliijjddd For more examples, go to glencoe.com.

Chapter 8 25

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Course 1

Problem-Solving Practice Function Rules

DATE PERIOD

1. AGE There are 12 months in 1 year. I f Carrick is 11 years old, how many months old is he? Make a table. Then write a function rule relating the number of months to the number of years. 1 -̂

1 11 24

2. MEASUREMENT There are 12 inches in 1 foot. The height of Rachel's door is 7 feet. Find the height in inches. Make a table. Then write a function rule relating the number of feet to inches.

3. RUNNING There are 60 seconds in 1 minute. Costas can ru n all the way around the track in 180 seconds. Find how long i t takes Costas to run around the track i n minutes. Make a table. Then write a function rule relating the number of seconds to the number of minutes. _ ,

sec

4. FRUIT There are 16 ounces in 1 pound. Chanda picked 9 pounds of cherries from her tree this year Find the number of ounces of cherries Chanda picked. Make a table. Then write a function rule relating the number of ounces to the number of pounds.

400^ 50

5. SPORTS There are 3 feet i n 1 yard. Tanya Streeter holds the world record for free-diving i n the ocean. She dived 525 feet in/^^/^^^y^ind the number of yards she dived. Make a table. Then write a function rule relating the number of feet to the number of yards.

6. COOKING There are 8 fluid ounces in 1 cup. A beef stew recipe calls for 3 cups of vegetable juice. Find the number of fluid ounces of vegetable juice needed for the recipe. Make a table. Then write a function rule relating the number of fluid otmces to the number of cups.

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Chapter 8 26 Course 1