Question

What is the value of (gof)(4)

F(x)=3-x; g(x)=4x+1

Answer 1

-3

Explanation:

`f(x) = 3 - x`

`g(x) = 4x + 1`

`h(x) = (g \bullet f) (x) = g(f(x)) \\ = 4(3 - x) + 1 \\ = 13 - 4x`

then

`h(4) = 13 - 4 * 4 = - 3`