Name __________________________________________________ 28-1: Representing Functions Homework Math 8 For Items #1 – 3, match each verbal description with its corresponding function representation. 1. Adam is allowed 15 text messages a day on his parents’ cell phone plan. A. x 1 2 3 4 5 Matches letter _______ 2. Ana Lucia rents a car for $20 a day. y 20 40 60 80 100 B. Matches letter _______ 3. Jabar starts a new job with 5 vacation days. He earns 2 additional days for every year he works. C. y = 15x Matches letter _______ For Items #4 - #6, match each verbal description with its corresponding equation and table of values. 4. Nina starts 1.5 miles from the park path entrance and inline skates at 10 miles per hour. matches equation ______ matches table ______ 5. Sasha starts 0.5 miles from the park entrance and runs at 5 miles per hour. matches equation ______ matches table ______ 6. Tavon starts at the park entrance and rides his bike at 15 miles per hour. matches equation ______ A. y = 5x + 0.5 B. y = 15x C. y = 10 x + 1.5 A. matches table ______ x 0 1 2 3 4 y 0 15 30 45 60 B. x 0 1 2 3 4 y 1.5 11.5 21.5 31.5 41.5 C. x 0 1 2 3 4 y 0.5 5.5 10.5 15.5 20.5 Model with mathematics. For Items #7 - #9, Match each graph of a function with its corresponding equation, verbal description, and table of values. 7. 8. Matches equation _______ Matches description ______ Matches table _______ 9. Matches equation _______ Matches description ______ Matches table __ Equations A. y = 10 x B. y = 30 − 4 x C. y = 25 Matches equation _______ Matches description ______ Matches table _______ Descriptions A. Javier has $30 in his savings account. He spends $4 a week. B. Serena has $25 in her savings account. She doesn’t save or spend any money. C. Lila saves $10 a week. Tables A. B. x 0 1 2 3 4 y 30 26 22 18 14 C. x 0 1 2 3 4 y 0 10 20 30 40 x 0 1 2 3 4 y 25 25 25 25 25
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