Find the midsegment of trapezoid ABCD given that A(1,1), D(5,1), C(4,8), and B(2,8).im trying to find slope of midsegment

The midsegment is the line segmnet MN where M is the midpoint of (1,1) and (2,8) and N is the midpoint of (5,1) and (4,8).

 

M = (1.5, 4.5)  and  N = (4.5, 4.5).

 

Now, use the slope formula.