The center of a circle is at (7, –3) and it has a radius of 9. What is the equation of the circle?


(x – 7)2 + (y + 3)2 = 3


(x + 7)2 + (y – 3)2 = 3


(x + 7)2 + (y – 3)2 = 81


(x – 7)2 + (y + 3)2 = 81