Question

Let f(x) = -x - 1 and g(x)=x2 + 4.
Find (fog)(0)

Answer 1

-5

Explanation:

We are asked to find f(g(0)).

Start with the inside which is g(0).

g(0)=0^2+4

g(0)=0+4

g(0)=4

So now we have f(g(0))=f(4).

f(4)=-4-1

f(4)=-5

Since f(g(0))=f(4), then f(g(0))=-5.