# What is the vertex form of the equation of the parabola with a focus at (-4,-7) and a directrix of #y=10#?

##### 1 Answer

May 7, 2018

**The equation of parabola is**

#### Explanation:

Focus is at

between focus and directrix. Therefore vertex is at

parabola is

above the vertex , so parabola opens downward and

negative

graph{-1/34(x+4)^2+1.5 [-40, 40, -20, 20]}