Suppose you earn $15 for each car you wash. Which function describes the relationship between your total earnings E and the number of cars you wash, c?
A. E(c) = c + 15
B. E(c) = 15c
C. c = 15E
D. E(c) = c – 15
The correct answer is B.
The function that describes the relationship between your total earnings E and the number of cars you wash, c, is E(c) = 15c.
This means that for every car you wash, you earn $15, so your total earnings are equal to 15 times the number of cars you wash.
The correct function that describes the relationship between your total earnings E and the number of cars you wash, c, is:
B. E(c) = 15c
This means that your earnings E is equal to 15 times the number of cars you wash, c.