The answers for edunuity are 1,3,5,6 you're welcome.
2-21x+28
-21x +3
Hope it helps
To determine the coordinates of the midpoints of a line segment, get the average of the both the abscissas and ordinates. In this example, the average of the abscissas is 22 and that of the ordinates is -4. Thus, the midpoint is (22, -4).
