# How do you graph #9 x² + y² + 18x - 6y + 9 =0#?

##### 1 Answer

May 15, 2018

#### Answer:

Please see below.

#### Explanation:

General equation of an ellipse is of the form

We can write the equation

or

or

or

Hence center of ellipse is

Hence vertices are

graph{9x^2+y^2+18x-6y+9=0 [-11.38, 8.62, -2.12, 7.88]}