Question

13. Find g(f(5)) if g(x) = 2x - 7 and F(x) = -4x - 7

Answer 1

g(f(5)) = - 61

Explanation:

Evaluate f(5) then substitute the value obtained into g(x) , that is

f(5) = - 4(5) - 7 = - 20 - 7 = - 27 , then

g(- 27) = 2(- 27) - 7 = - 54 - 7 = - 61