Here's the question you clicked on:
icamommy
if f(x)=x-10 and g(x)=4x+3, how do i find fog of (-2)
fog (-2)=f( g(-2))=f(4(-2)+3)=f(-5)=-5-10=-15
the composition of f and g
First you need to take the function g(x) and substitute the entire thing for x in f(x). The resulting function would be f(g(x)) then the next thing is simply to substitute -2 for x in f(g(x))