If the coordinates of one endpoint of a line segment are (0, 0)and the coordinates of the midpoint of
the segment are (p, q), then the coordinates of the other endpoint are (-p, -q).

Question

Quizplus · Accepted Answer

The coordinates of the other endpoint are (2p, 2q) because the midpoint formula is the average of the x-coordinates and the y-coordinates of the endpoints. If one endpoint is (0,0) and the midpoint is (p,q), then the other endpoint must be (2p, 2q) to satisfy the midpoint formula.

If the Coordinates of One Endpoint of a Line Segment