## Precalculus (6th Edition) Blitzer

RECALL: The standard form of a circle's equation is $(x-h)^2+(y-k)^2=r^2$, where $(h, k)$ is the center and $r$ is the radius. This means that the given equation is a circle whose center is at $(3, -5)$ and a radius of $\sqrt{-36}$ units, which is not possible as the radius needs to be positive. Thus, the given statement does not make sense.