Question

F(x) = 3x - 3
g(x) = 4x + 5

find (f+g) (3)

Answer 1

23

Explanation:

(f + g)(3) = f(3) + g(3)

f(3) = 3(3) - 3 = 9 - 3 = 6

g(3) = 4(3) + 5 = 12 + 5 = 17

Then

(f + g)(3) = 6 + 17 = 23