Question

F(x) = x + 1, g(x) = 7x + 8 find (fog)(x)

Answer 1

7x + 9

Explanation:

f(x) = x + 1

g(x) = 7x + 8

therefore, (fog)(x) = f(g(x))

f(g(x)) = (7x + 8) + 1

= 7x + 9