# What is the equation of the parabola with a focus at (7,3) and a directrix of y= 4?

##### 1 Answer

Aug 15, 2017

**The equation of parabola is**

#### Explanation:

Focus is at

between focus and directrix .

So vertex is at

vertex and directrix is

vertex , so parabola opens downward and

The equation of parabola is

being vertex. Here

the equation of parabola is

graph{-0.5(x-7)^2 +3.5 [-20, 20, -10, 10]}