# How do you find the center, vertices, foci and eccentricity of #9x^2 + 25y^2 = 225#?

##### 1 Answer

Nov 3, 2016

The center is

The vertices are

The foci are F

The eccentricity

#### Explanation:

Let's start by rewriting the equation

By dividing by 225

this is the equation of an ellipse

Here

the vertices are

So the foci are

so F

The eccentricity

graph{x^2/25+y^2/9=1 [-10, 10, -5, 5]}