For example suppose x - 2 2 y - 3 2 4 2 is an equation of a circle. The radius is r the center of the circle is h k and x y is any point on the circle. X-0 x-0 y-2 y-8 0 This can be rearranged feel free to do so to x² y² - 10y 16 0 or x² y-5² 9.
We put the center coordinates 4 3 into the a and b variables and we square the radius for r².
Which of the following is true of the values of x and y in the diagram below. Answer by ewatrrr 23274 Show Source. Then find the midpoint of the diameter which will be the center of the circle. Identify the radius and the center.