# What is the equation of a parable with vertex (2,2) and the directrix is y=2.5?

##### 1 Answer

Dec 7, 2016

The equation is

#### Explanation:

If the directrix is

The line of symmetry is

and the focus is

The distance of a point

graph{(2y-4+(x-2)^2)(y-2.5)=0 [-11.25, 11.25, -5.63, 5.62]}