Given the equation of a circle:
You need to remember thatthe equation of a circle has this form:
Where "h" is the x-coordinate of the center of the circle, "k" is the y-coordinate of the center , and "r" is the radius.
In this case, you can identify that:
Notice that:
Solving for "r", you get:
Hence, the answer is:
- The coordinates of the center of the circle are:
- The radius of the circle is: