Respuesta :

We need to find f(q+1) knowing that f(x) = 6 x + 7

so, we replace x by (q+1) in the functional expression:

f (q+1) = 6 (q + 1) + 7 = 6 q + 6 + 7 = 6 q + 13

So,

f (q+1) = 6 q + 13