# What is the vertex form of the equation of the parabola with a focus at (6,-13) and a directrix of #y=13 #?

##### 1 Answer

Sep 12, 2017

#### Explanation:

Given the focus and directrix of a parabola, you can find the parabola's equation with the formula:

where:

Plugging in the values of those variables gives us:

Simplifying gives us: