[tex]\begin{gathered} \text{mid point = (}\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}\text{)} \\ x_1=6 \\ x_2=2 \\ y_1=-3 \\ y_2=9 \\ \text{mid point = (}\frac{6+2}{2},\frac{-3+9}{2}\text{)} \\ \text{mid point = (}\frac{8}{2},\frac{6}{2}\text{)} \\ \text{mid point = (4, 3)} \end{gathered}[/tex]
