Question

Given the function f(x) = x^2- 2x, find f(-1) and f(1). Based on your answers, determine if the function is even. Explain your reasoning.

Answer 1

Answer:

f(-1) = 3

f(1) = -1

Step-by-step explanation:

f(x) = x^2- 2x; substitute the value into x

f(-1) = $x^{2}$ - 2x = $(-1)^{2}$ - 2(-1) = 1 + 2 = 3

f(1) = $x^{2}$ - 2x = $(1)^{2}$ - 2(1) = 1 - 2 = -1