Question

If g(x) = x2 – 4, then what is g(-4)?
0 -20
0 -8
O 12
O 20

Answer 1

g(- 4) = 12

Explanation:

To evaluate g(- 4), substitute x = - 4 into g(x), that is

g(- 4) = (- 4)² - 4 = 16 - 4 = 12