Question

If M is the midpoint of XY, find the coordinates of X if M(-3,-1) and Y(-8,6).

Answer 1

(2, -8)

Explanation:

The coordinates of M are the average of the coordinates of X and Y.

-3 = (x + -8) / 2

-1 = (y + 6) / 2

Solving:

x = 2

y = -8