Find the midpoint M of the line segment joining the points S = (6, 8) and T = (2, - 6).

To find the midpoint M of the line segment joining the points S = (6, 8) and T = (2, -6), we can use the midpoint formula:

Midpoint M = [(x1 + x2)/2, (y1 + y2)/2]

Where (x1, y1) = S and (x2, y2) = T

So the midpoint M = [(6 + 2)/2, (8 + (-6))/2]
= [8/2, 2/2]
= [4, 1]

Therefore, the midpoint M of the line segment joining the points S = (6, 8) and T = (2, -6) is (4, 1).