1) To find the length of the segment. let's use the distance formula, derived from the Pythagorean Theorem.
Plugging into the formula those points we'll have:
[tex]d=\sqrt[]{(x_2-x_1)^2+(y_2-y_1)^2_{}}\text{ }\Rightarrow d\text{ =}\sqrt[]{85}[/tex]
2) So now, let's find out the Midpoint, by using another Formula
3) Finally, the midpoint of that segment is located at M=(-1, 15/2)
