Answer
$(x-3)^2+(y+5)^2=81$
Work Step by Step
The standard equation of a circle can be written as: $(x-h)^2+(y-k)^2=r^2....(1)$
Here, $(h,k)$ represents the center co-ordinates and r is the radius.
After substituting the values in the equation (1), we get
$(x-3)^2+(y-(-5))^2=(9)^2$
or, $(x-3)^2+(y+5)^2=81$
