Question

dada a função f(3x-1) = x+2 o valor de f(x+1) é

Answer 1

F (x + 1) = (x + 1) + 2
F (x + 1) = x + 3

Answer 2

Seja 3x - 1 = a => 3x = a + 1 => x = (a + 1)/3

f(a) = (a + 1)/3 + 2, logo:

f(x) = (x + 1)/3 + 2

f(x + 1) = (x + 1 + 1)/3 + 3

f(x + 1) = (x + 2)/ 3 + 3