How do you find the center and radius of #X^2 + Y^2 = 13#?
The center is (0,0) and the radius is
The equations of the circle is
where h is the x of the center of the circle and k is the y of the center of the circle, and r is the radius.
(2,6) radus is 3
h = 0
k = 0
(0,0) radus is