Given that P1 (2, - 1), P2 (- 1,3), P is on the straight line p1p2, and the vector | p1p | = 2 / 3 | PP2 | There should be two points!

Given that P1 (2, - 1), P2 (- 1,3), P is on the straight line p1p2, and the vector | p1p | = 2 / 3 | PP2 | There should be two points!

Such a simple question
First, find the p1p2 linear equation, set the point P (a, b), substitute it into the linear equation, express it with a variable, and substitute it into the following condition, then it can be calculated, I will not calculate it