(04.07) luke is keeping track of the total number of hours he exercises. he started the summer having already put in 15 hours, and he then exercises 7 hours each week. the function to keep track of his exercise is f(x) = 7x + 15. what do the f(x) and x represent in luke's situation?

f(x) is the total number of hours exercised and x is the number of weeks.

Explanation:

In function notation, we can see which variable is independent.  In this case, x is the independent variable.

In the problem situation, the two quantities (variables) are weeks and amount of exercise; the amount of exercise would depend on how many weeks have passed, so weeks is the independent variable, or x.

This means that exercise is a function of weeks.  This means that f(x) is the amount of exercise, and x is the number of weeks.

answer: 1,380

step-by-step explanation:

1: you turn %15 into a decimal by moving the decimal point two places to the left.

2: and then you multiply .15 by 1,200 , which will get you 180.00

3: from there you will add 180 to 1,200

4: which will get you 1,380

hope it *im kind of slow so idk if my answer is right*