Answer:
The center of the circle represented by given equation is (−1,3) and its radius is 3.
Step-by-step explanation:
An equation of the form (x−h)2+(y−k)2=r2, is the equation of a circle of radius r, with a center at (h,k).
Hence as the equation
(x+1)2+(y−3)2=9
⇔(x−(−1))2+(y−3)2=9=32
and hence the center of the circle represented by this equation is (−1,3) and radius is 3.