# How do you find the coordinates of the center, foci, the length of the major and minor axis given #3x^2+9y^2=27#?

##### 1 Answer

Dec 29, 2016

The center is

The foci are

The length of the major axis is

The length of the minor axis is

#### Explanation:

Let 's rearrange the equation

Dividing by

We compare this to the general equation of the ellipse

The center is

To calculate the foci, we need

The foci are F

and F'

The length of the major axis is

The length of the minor axis is

graph{3x^2+9y^2=27 [-5.546, 5.55, -2.773, 2.774]}