Which is a correct equation of the circle? (x − 5)^2 + (y - 6)^2 = 6
(x − 6)^2 + (y - 5)^2 = 9
(x − 5)^2 + (y - 6)^2 = 9
(x - 6)^2 + (y − 5)^2 = 6