The vertex of the parabola below is the point (-3,-5). Which of these equations below could be one for this parabola?

Question

asked Dec 12, 2019 33.2k views

2 Answers

Sean Parsons · Answer 1 · 2019-12-17T13:56:42+0000

The answer is choice (B).

A standard quadratic written in vertex form is:

y = (x - h)^2 + k, where h and k are the x and y coordinates of the vertex.

So, if h is negative (in this case, -3), then it becomes x + 3.

If k is negative, though, (in this case, -5) then it becomes (x + 3)^2 - 5.

Therefore, the answer is (B).