Answer
A) $$(x-h)^{2}+(y-k)^{2}=r^{2}$$
B) $$(x-2)^{2}+(y+1)^{2}=3^{2}$$
Work Step by Step
A) Write an equation of the circle with center (h,k) and radius r.
$$(x-h)^{2}+(y-k)^{2}=r^{2}$$
B)Find the equation of the circle with center (2, -1) and radius 3.
$$(x-2)^{2}+(y+1)^{2}=3^{2}$$
