## Geometry: Common Core (15th Edition)

$M(0,0)$
use the midpoint formula $M(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$ substitute $M(\frac{-3+3}{2},\frac{2+-2}{2})$ simplify $M(\frac{0}{2},\frac{0}{2})$ $M(0,0)$