Question

Given the function c(y) = -6y - 5,for what value of y is c(y) = 9?

Answer 1

y = -7/3

Explanation:

To determine for what value of y does c(y) = 9, we can substitute 9 for c(y) in c(y) = -6y - 5:

(9 = -6y - 5) + 5

(14 = -6y) / -6

-7/3 = y

Thus, -7/3 is the value of y that makes c(y) = 9.