The endpoints of bar(AB) have coordinates are A(9, 8) and B(-1, -2), so the midpoint is simply the average of x- component of both coordinates and the average of y- component of both coordinates.
A=(x₁, y₁)=(9, 8)
B=(x₂, y₂)=(-1, -2)
The midpoint formula is given below;
[tex] Midpoint=(x,y)= (\frac{x_{1}+x_{2}}{2} , \frac{y_{1}+y_{2}}{2} ) [/tex]
[tex] =(\frac{9-1}{2} , \frac{8-2}{2} ) [/tex]
[tex] = (4 , 3 ) [/tex] is the midpoint of bar(AB).
