Suppose That Segment $P Q$ Has the Given Coordinates for One Endpoint

Multiple Choice

Suppose that segment $P Q$ has the given coordinates for one endpoint $P$ and for its midpoint $M$ . Find the coordinates of the other endpoint $Q$ .
- $P(5,5)$ and $M\biggl(\frac{9}{2}, \frac{9}{2}\biggl)$

A) $Q(9,9)$
B) $\mathrm{Q}\biggl(\frac{1}{2}, \frac{1}{2}\biggl)$
C) $\mathrm{Q}(4,4)$
D) $Q(1,1)$