Amber plans to cook a turkey and macaroni and cheese for a special dinner. Since

she will need to use the oven for both dishes and they won't both fit in the oven

at the same time she has to determine how much time all the cooking will take.

The macaroni and cheese will take a set amount of time, while the turkey takes a

certain number of minutes per pound that the turkey weighs.

Answers

:

a. what do variables x and y represent? use the phrase 'is a function of' to describe how the two quantities relate to each other.

answer: y is a function of the total cooking times Amber will need to prepare her dishes. x is a function of the certain number of minutes it will take to cook the turkey per pound.

b. what does the value 40 represent?

answer: how long the mac and cheese will cook

c. what does the rate of change represent?

answer: for every pound that the turkey weighs, you would have to cook it for 15 minutes

d. what is the total cooking time for just the turkey if it weighs 12 pounds? how do you know?

answer:

y = 15x + 40

y = 15 (12) + 40

y = 180 + 40

y = 210 minutes