Question

Given the function f(x) = x²-4x, evaluate f(2)

Answer 1

f(2) = -4

Explanation:

f(x) = x²-4x

f(2) = (2)²-4(2) ==> plugin 2 for x

f(2) = 4 - 4 * 2 ==> simplify

f(2) = 4 - 8

f(2) = -4