Question

If f(x) = 4x and gx) = 2x- 1, what is g(f(-2))?
-17
-13
-8
-5

Answer 1

-17

Explanation:

We are given these following functions:

`f(x) = 4x`

`g(x) = 2x - 1`

g(f(-2))

First we find f when x = -2, then we find g for this value(f when x = -2). So

`f(-2) = 4(-2) = -8`

`g(f(-2)) = g(-8) = 2(-8) - 1 = -16 - 1 = -17`

Thus -17 is the answer.