
William W. answered 05/14/21
Math and science made easy - learn from a retired engineer
The general equation of a circle is (x - h)2 + (y - k)2 = r2 where (h, k) is the center of the circle and "r" is the radius of the circle. Since this equation can be written as (x - -9)2 + (y - -7)2 = 172, the center is at (-9, -7) and the radius is 17.