# How do you find the center and radius for #x^2 + y^2 + 8y + 6 = 0#?

##### 1 Answer

Jun 17, 2016

cetre at (0,-4)

#### Explanation:

The General Eqn. of a circle is given by

Comparing the given eqn. with the general one, we get,

Then, the centre is

Completing the squares of the given eqn., we have,

Now recall that eqn. of a circle with centre

Comparing (1) & (2), we get the cetre at (0,-4)