Question

Which of the following is an even function? f(x) = (x – 1)2 f(x) = 8x f(x) = x2 – x f(x) = 7

Answer 1

answer is f(x)= 7

Explanation:

just took edge2020 test

Answer 2

f(x) = 7

Explanation:

f(x) = f(-x) it is even

-f(x)=f(-x) it is odd

f(x) = (x – 1)^2 neither even nor odd

f(x) = 8x this is a line odd functions

f(x) = x^2 – x neither even nor odd

f(x) = 7 constant this is an even function