Question

The coordinates of the center of a circle with equation (x - 6)^2 + (y + 3)^2 = 7^2 are: A. (-6, 3) B. (-3, 6) C. (6, -3) D. (6, 7)

Answer 1

A circle of center (a,b) and radius r has an equation
(x-a)^2 + (y-b)^2 = r^2
Can you answer your question now?

Answer 2

Compare the two formulae
(x-a)^2 + (y-b)^2 = r^2
(x - 6)^2 + (y + 3)^2 = 7^2
What is a and b