Answer:
The radius is 5 units
(-7,-1) and (-7,5) lies on the circle
Step-by-step explanation:
Use the distance formula to find the distance between the center and the given point that gives you the radius.
The center is (-3,2) and the point on the circumference is (1,5)
The radius is 5 units.
The equation of the circle is given by:
When x=-7, we obtain y by substituting into the equation of the circle:
or y=5
Therefore (-7,-1) and (-7,5) lies on the circle.