Question

Suppose f(x) = x^2– 7. and g(x) = 5 – x^2 ,then g(f(-4)) =

Answer 1

- 76

Explanation:

To evaluate g(f(- 4)) , evaluate f(- 4) then substitute this value into g(x)

f(- 4) = (- 4)² - 7 = 16 - 7 = 9, then

g(9) = 5 - 9² = 5 - 81 = - 76

Answer 2

-76

Explanation:

f(x) = x^2– 7. and g(x) = 5 – x^2 ,then g(f(-4)) =

-76