Question

Sejam f(x) = 3x – 2 e g(x) = 4x + 1, determine:
a) g(f(x))
b) fog
c) fof
d) g(g(x))

Answer 1

a) g(f(x))= 4(3x-2)+1=12x-7
b)fog=3(4x+1)-2=12x+1
c) fof=3(3x-2)-2=9x-8
d)g(g(x))= 4(4x+1)+1=16x+5