Question

Which of the following is an even function

Answer 1

b

Explanation:

edge 2021

Answer 2

g(x) = 2x^2 + 1

Explanation:

For an even function f(x) = f(-x).

The second option is even because:

2x^2 + 1 = 2(-x)^2 + 2 ( Note x^2 = (-x)^2 )