Answer
$(x-2)^2 + (y-3)^2 = 20.25$
Work Step by Step
The standard equation of a circle with center $(h,k)$ and radius $r$ is
$$(x-h)^2+(y-k)^2=r^2$$
Substitute $(h,k)=(2,3)$ and $r = 4.5$ to obtain the circle's equation:
$$(x-2)^2+(y-3)^2=4.5^2$$ $$(x-2)^2 + (y-3)^2 = 20.25$$
