# How do you find the center and radius of the circle given #4x^2+4y^2+36y+5=0#?

##### 1 Answer

Jan 31, 2017

#### Answer:

The centre of the circle is

#### Explanation:

We complete the squares

Dividing by

So the centre of the circle is

graph{4x^2+4y^2+36y+5=0 [-13.72, 14.76, -13.18, 1.07]}