Question

Which equation describes a parabola that opens up or down and whose vertex

Answer 1

A. y = a(x - h)² + v

Step-by-step explanation:

The equation of a parabola with vertex (h, k) is:

y = a(x - h)² + k

Where a is a positive or negative number and determine whether the parabola opens up or down.

Then, if we need the equation of a parabola with the vertex in the point (h, v), the equation of this parabola is:

y = a(x - h)² + v