Question

Given f (x) = 2x² +1evaluate f (-1).

Answer 1

The answer is 3 I checked!!!!!!!!!!

Answer 2

3

Explanation:

f(x) = 2x^2 + 1

f(-1) means that wherever you see an x on the right hand side, you substitute -1.

f(-1) = 2(-1)^2 + 1 = 2 + 1 = 3