Question

A certain function is represented by Rx) = -4 x2-3x+ 2.
What is the value of f(-2)?

Answer 1

f(- 2) = - 8

Explanation:

To evaluate f(- 2) , substitute x = - 2 into f(x), that is

f(- 2) = - 4(- 2)² - 3(- 2) + 2

= - 4(4) + 6 + 2 = - 16 + 8 = - 8