# How do you write an equation of a ellipse with foci (0,0), (0,8) and major axis of length 16?

##### 1 Answer

Dec 30, 2016

#### Explanation:

The midpoint between the foci is the center

The distance between the foci is equal to

The major axis length is equal to

Between the coordinates of the foci, only the y-coordinate changes, this means the major axis is vertical. The standard equation of an ellipse with a vertical major axis is