How do you graph x^2+y^2+4x-4y-1=0?

1 Answer
Feb 6, 2016

Complete the square

Explanation:

After completing the square, you will get

${\left(x + 2\right)}^{2} + {\left(y - 2\right)}^{2} = {3}^{2}$

This is a circle with center at $\left(- 2 , 2\right)$ and radius of 3 units.