Answer :
Given any two points (x1, y1) and (x2, y2), the coordinate of the midpoint, (xm, ym) is given by
[tex]x_m=\frac{x_{1+}x_2}{2}[/tex][tex]y_m=\frac{y_{1+}y_2}{2}[/tex]In this case,
x1 = -1, y1=2
x2=7, y2=3
Therefore
[tex]x_m=\frac{-1+7_{}}{2}=\frac{6}{2}=3[/tex][tex]y_m=\frac{3+2_{}}{2}=\frac{5}{2}=2\frac{1}{2}[/tex][tex]\text{Hence the midpoint is (3, 2}\frac{1}{2})[/tex]