The radius is r the center of the circle is h k and x y is any point on the circle. The center of a circle is located at 2 7. Find the equation of the circle with centre 2 -1 and passing through the point 3 6 in general form.
H and k are the x and y coordinates of the center of the circle x 9 2 y 6 2 100 is a circle centered at 9 6 with a radius of 10.
X2 y2 2gx 2fy c 0 Center -g -f. Also it can find equation of a circle given its center and radius. Where hk represents the center of the circle and r represents radius. Adding g2 f2 on both sides of the equation gives.