Question

Mar 03, 10:24:31 PM Given f(x)=-3x^(2)-x-15, find f(-8) Answer: Submit Answer

Answer 1

f(- 8) = - 199

Explanation:

to find f(- 8) , substitute x = - 8 into f(x) , that is

f(x) = - 3x² - x - 15 , then

f(- 8) = - 3(- 8)² - (- 8) - 15

= - 3(64) + 8 - 15

= - 192 - 7

= - 199