Let's use midpoint formula
[tex]\\ \tt\hookrightarrow M(x,y)=\left(\dfrac{x_1+y_1}{2},\dfrac{x_2+y_2}{2}\right)[/tex]
[tex]\\ \tt\hookrightarrow M(x,y)=\left(\dfrac{-3+5}{2},\dfrac{-6+4}{2}\right)[/tex]
[tex]\\ \tt\hookrightarrow M(x,y)=\left(\dfrac{2}{2},\dfrac{-2}{2}\right)[/tex]
[tex]\\ \tt\hookrightarrow M(x,y)=(1,-1)[/tex]
