Answer:
[tex]\large\boxed{\left(3,\ \dfrac{11}{2}\right)=(3,\ 5.5)}[/tex]
Step-by-step explanation:
The formula of a midpoint of line segment AB:
[tex]\left(\dfrac{x_A+x_B}{2};\ \dfrac{y_A+y_B}{2}\right)[/tex]
We have A(-1, 8) and B(7, 3). Substitute:
[tex]x=\dfrac{-1+7}{2}=\dfrac{6}{2}=3\\\\y=\dfrac{8+3}{2}=\dfrac{11}{2}=5.5[/tex]
