Question

Which function has a vertex at the origin?

A f(x) = (x + 4)2
B fx) = x(x - 4)
C f(x) = (x - 4)(x + 4)
D f(x)= x²

Answer 1

I think that it is answer D

Answer 2

answer D

Explanation:

Hello,

we can check the graph of the functions as attached or compute the vertex analytically

from the graph you can see that D is the correct answer