Question

If f(x) = 3-8(x-2), what is f(-9)

Answer 1

91 just fill in -9 to x

Answer 2

f(- 9) = 91

Explanation:

To evaluate f(- 9) substitute x = - 9 into f(x), that is

f(- 9) = 3 - 8(- 9 - 2) = 3 - 8(- 11) = 3 + 88 = 91