Question

1) dadas as funções f(x)= 3x + 1 e g(x)= 2x -4, determine:
A) g (f(x))
B) g (g(x))
C) f (g(x))
D f (f(x))

Answer 1

A) g(f(x))= 2(3x+1)-4= 6x-2
B) g(g(x))= 2(2x-4)-4= 4x-12
C) f(g(x))= 3(2x-4)+1= 6x-11
D) f(f(x))= 3(3x+1)+1= 9x+4