Answer:
The equation of a circle is .
Step-by-step explanation:
-The equation of a circle is:
(where center is , the point and the radius known as ).
-Use the center (5,-4) and the point (5,-2) for the equation:
-Solve the equation:
-After you found the radius, use the center (5, -4) and radius 2 to get the equation of a circle:
-Then, after you have the equation, the radius needs to simplified by the exponent: