One endpoint of a line segment is (8, −1). The point (5, −2) is one-third of the way from that endpoint to the other endpoint. Find the other endpoint.

Question

One endpoint of a line segment is (8, −1). The point (5, −2) is one-third of the way from that endpoint to the other endpoint. Find the other endpoint.
can someone explain how u get -4,-1

oobleck · Accepted Answer

so if A = (8,-1) B = (5,-2) The distance from A to B is (-3,-1) That means that the other endpoint is A + 3(-3,-1) = (8,-1) + (-9,-3) = (-1,-4)