Question

Evaluate the function.
f(x) = -3x2 – 20
Find f(-9)

Answer 1

To evaluate the function f(x) = -3x^2 - 20 at -9, substitute -9 for x: f(-9) = -3(-9)^2 - 20 = -263.

Step-by-step explanation:

To evaluate the function f(x) = -3x^2 - 20, we substitute -9 for x:

f(-9) = -3(-9)^2 - 20

= -3(81) - 20

= -243 - 20

= -263

Therefore, f(-9) = -263.