Question

Given the function f(x) = −5x2 − x + 20, find f(3).

Answer 1

Answer: -28

given the function f(x) =-5x2 - x +20

find f(3)

Answer 2

f(x) = -5x^2 - x + 20;

f(3) = -5*3^2 - 3 + 20 = -5*9 - 3 + 20 = -45 - 3 + 20 = -28;