# How do you find the equation of the circle, given the center and radius (-1,2);6?

##### 1 Answer
Dec 26, 2015

${\left(x + 1\right)}^{2} + {\left(y - 2\right)}^{2} = 36$

#### Explanation:

The general form of the equation of a circle with center $\left(a , b\right)$ and radius $r$ is
$\textcolor{w h i t e}{\text{XXX}} {\left(x - a\right)}^{2} + {\left(y - b\right)}^{2} = {r}^{2}$