Question

A circle with center (-2,6) passes through the point (-2,10). Which of the following is the equation of the circle?

Answer 1

Because the center is at (-2,6) its either  a or c    ( because of the x+2 and x-6)

If we plug x = -2 and y = 10 into  equation a and c well see which one is correct
Plug in  equation a:_
((-2+2)^2 + (10-6)^2 = 0 + 16 = 16 
so its equation a Answer