Answer
$(-\frac{11}{2},-2)$
Work Step by Step
Given the coordinates of the two end points as $(4,-6)$ and $(-15,2)$, using the formula for midpoint, we have $x_m=\frac{4-15}{2}=-\frac{11}{2}$ and $y_m=\frac{-6+2}{2}=-2$, which gives the midpoint as $(-\frac{11}{2},-2)$
