## Elementary Geometry for College Students (6th Edition)

$(-4,5); (4,-9); (16,11)$
We know that the point $(10,1)$ is 4 left and 7 below the point$(6,8)$. Thus, we know that a vertex can occur 4 left and 7 above the point $(0,-2)$, and a vertex could occur 4 right and 7 below $(0,-2)$ These are the points: $(-4,5)$ and $(4,-9)$. Finally, since (6,8) is 6 to the right and 10 above $(0,-2)$, a vertex can occur 6 to the right and 10 above the point (10,1); this is the point (16,11).