Question

Which of the following equations is of a parabola with a vertex at (0, -5)?



y = (x - 5)^2

y = (x + 5)^2

y = x^2 - 5

y = x^2 + 5

Answer 1

Vertex form of a parabola is y=a(x-h)^2+k
where h is x-coordinate and k is y-coordinate of the vertex