WeBWorK Standalone Renderer

Consider a circle with center $(2 ,-3 )$ which has a point on the circle at $(-9 ,-3)$ .
First, determine the radius of the circle:

Finally, an equation for the circle with center (2,-3) and passing through (-9,-3) is given by:

$(x -$ $)^2 + (y -$ $)^2 =$ .

You can earn partial credit on this problem.