What are the center and radius of the circle with equation
center= (-1,2), radius=2
center= (1,-2), radius=16
center= (-1,2), radius=4
center= (1,-2), radius=2
Which point lies on the circle with equation
(3,-3)
(-2,8)
(3,-7)
(3,-2)
The equation
represents circle A. The point B (4,7) lies in the circle.
What is the radius of circle A?
5