Question

For the pair of functions, f and g, find (f o g)(x) and (g o f)(x)
f(x)=4-7x
g(x)=5x+5

Answer 1

(f o g)(x)=-31-35x
(g o f)(x)=25-35x

Answer 2

hint:
\[FoG(X) = f(g(x))\]
and
\[GoF(x) = g(f(x))\]

Answer 3

i'm doing the first one:
\[(f o g)(x)=f[5x+5]=4-7(5x+5)\]
like this
got that?