Question

Given the function f(x) = −5x^2 − x + 20, find f(3).

Answer 1

f(3) = -28

Explanation:

f(3) = -5(3²) - 3 + 20

= -5(9) - 3 + 20

= -45 - 3 + 20

= -48 + 20

= -28