Question

f(x)=3x-7 and g(x)=-2x-6 find (f o g)(4)

Answer 1

Please help!!!!

Answer 2

Work from right to left.

First, substitute x=4 into the g(x) equation.

Then substitute x = g(4) into f(x), g(4) being the value you just found in the first step.

Answer 3

I'm so confused

Answer 4

So g(x) = -2x-6

g(4) = -2(4)-6 = -8-6 = -14

f(x) = 3x-7
f(g(4)) = 3(-14)-7 = -42-7 = -49

so (f o g)(4) = -49