Question

What is the value of f(g(-2))

Answer 1

f(g(- 2) ) = 3

Explanation:

to evaluate f(g(- 2) ) , evaluate g(- 2) then substitute the value obtained into f(x)

g(- 2) = 2(- 2) + 5 = - 4 + 5 = 1 , then

f(1) = 4 - 1² = 4 - 1 = 3