# What is the vertex form of the equation of the parabola with a focus at (0,-15) and a directrix of #y=-16 #?

##### 1 Answer

Mar 27, 2017

The vertex form of a parabola is

The vertex of the parabola is

For this parabola, the focus

The directrix

We now have two equations and can find the values of

Solving this system gives

Plugging the values of