You can put this solution on YOUR website!
Add up the x coordinates. Then divide that sum in half.
Add: -8 + 0 = -8
Divide in half: -8/2 = -4
This is the x coordinate of the midpoint.
Repeat the same idea for the y coordinates.
Add: 2+(-4) = -2
Divide in half: -2/2 = -1
This is the y coordinate of the midpoint.
Answer: M = (-4,-1)
You can confirm this answer using GeoGebra or Desmos