The circle C C\,C has centre (−2,3)(-2, 3)(−2,3) and passes through the point (1,8)(1, 8)(1,8).
Find an equation for CCC.
Show that the point (3,6)(3, 6)(3,6) lies on CCC.
The point (3,6)(3, 6)(3,6) is one end of a diameter of CCC. State the coordinates of the other end of that diameter.