# How do you identify the center and radius of the circle (x+9)^2+(y+1)^2=36?

The centre is $\left(- 9 , - 1\right)$ and the radius is $6$.
The general form for a circle is ${\left(x - h\right)}^{2} + {\left(y - k\right)}^{2} = {r}^{2}$, where the center is $\left(h , k\right)$ and the radius is $r$.