Answer :
[tex]\begin{gathered} \text{mid point=(}\frac{x_2+x_1}{2},\frac{y_2+y_1}{2}\text{)} \\ \text{mid point=(}\frac{-6+2}{2},\frac{-3+7}{2}\text{)} \\ \text{mid point=(}\frac{-4}{2},\frac{4}{2}\text{)} \\ \text{mid point=(-2,2)} \end{gathered}[/tex]