# How do you graph #x^2+y^2-4x-2y-4=0#?

##### 1 Answer

It is an equation of a circle with center in

#### Explanation:

From this form you can find out that the equation represents a circle.

To find its coordinates and radius you should transform it to form of:

We start from the equation given:

Now we can group terms with the same variable:

Now we can complete the squares of variables:

I added

Now we can write the expressions with

Finally I can move

From this equation I can read that the equation shows a circle with center in