Answer :
[tex]\begin{gathered} \text{mid point = (}\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}) \\ \text{mid point = (}\frac{-3+7}{2},\frac{2+10}{2}\text{)} \\ \text{mid point=(}\frac{4}{2},\frac{12}{2}\text{)} \\ \text{mid point=(2,6)} \end{gathered}[/tex]