A circle is centered at (-8, - 13) and has a radius of 13.

What is the equation of the circle?

Enter the equation in the box using lower case variables x and y.

The standard form of the equation of a circle is given below,

(x - h) ² + (y - k) ² = r²

where h and k are the x and y coefficients of the center, respectively and r is the radius.

Substituting the known values,

(x - - 8) ² + (y - - 13) ² = 13²

This can be simplified into,

(x + 8) ² + (y + 13) ² = 13²