You can put this solution on YOUR website!
To find the equation of a circle, you must know the center and the radius of the circle. In this problem, you are given the center, but not the radius. However, the radius is the distance between the center and the given point that is on the circle. Use the distance formula to find this distance, which is the radius of the circle.
Now, the equation of a circle with center at (h,k) and radius r is given by
In this case, it will be
Some teachers require you to multiply this out, but this form is acceptable to me. If your teacher wants it multiplied out, then by all means multiply away!!
R^2 at SCC