Question

What is the vertex of the graph of y = –x2? (–1, 0) (0, –1) (0, 0) (1, 1)

Answer 1

C. (0, 0)

Explanation:

got it right

Answer 2

The vertex is (0, 0).

Explanation:

Check out the parent function: y = x^2. The graph is a parabola whose vertex is (0, 0) and which opens upward.

Then y = -x^2 is the same but opens downward. The vertex is (0, 0).