8.4 Multiple Representations of Functions

An adult polar bear walks at an average rate of 5 kilometers per hour. Write an equation to find k, the number of kilometers a polar bear can walk in h hours.

An adult manatee eats approximately 100 pounds of aquatic food per day.

Write an equation to find p, the number of pounds of food an adult manatee can eat in d days.

Derrick started a new job at McDonald's. He makes $10 per hour. Which equations models his total weekly earnings (W) in terms of the number of hours he works (t)?

•  $W=10+t$  

•  $W=10+t$  

•  $W=10t$  

•  $W=10W$  

Derrick started a new job at McDonald's. He makes $10 per hour. Which graph models his total weekly earnings in terms of the number of hours he works?

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Derrick started a new job at McDonald's. He makes $10 per hour. Which table models his total weekly earnings in terms of the number of hours he works?

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Clare owns a mobile pet grooming company. She charges $20 to come to your home PLUS $30 PER HOUR to groom your pet. Which equation models the amount she charges over time?

• $y=50x$

• $y=20x+30$

• $y=30x+20$

• $20x+30y$

Clare owns a mobile pet grooming company. She charges $20 to come to your home plus $30 per hour to groom your pet. Which table models the amount she charges over time?

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What is the equation that represents the relationship in the table?

• p + 3 = d

• d + 3 = p

• d = p + 3

• p = d + 3

What variable represents the input?

• p

• d

Which equation matches the table? 

• y = x + 4

• y = 5x

• y = x - 4

• y = x + 16