Hi

Please help me. I want to know how to find the coordinates of a circle after they have been rotated some degrees.

One problem I read wrote this:

"Shown in the standard (x,y) coordinate plane below, pint P (6,6) is rotated 90 degrees clockwise about the orgin (2,3). What are the coordinates of P after the rotation has been complete?"

I know the answer is (5,-1), but I don't know why that is the answer or how to solve the problem for other questions!