Question

If f(x) = 5x+4 and g(x) = x-4, find (f o g)(x) and (g o f)(x)

Answer 1

Explanation:

F(g(x)) = F(x-4)

= 5(x-4) +4

= 5x-20+4

=5x-16

G(f(x)) = G(5x-4)

= (5x-4) -4

= 5x-8