Below is the question given.
"Give a vector description of a point P that is on-third of the way from A to B on the line segment AB."
2. The attempt at a solution
I'm not sure where to go with this, all I really have at this point is a line A-B 6 squares long on my graph paper, with the point P at square 2.
From there I have drawn a two vectors above the line, they both originate at O and descend down to A and B, such that another vector descends from O to P at 90 degrees.
I believe that I have to use the Proj of u onto v at some point (or b onto a), but I'm unsure how to incorporate this into the solution.
O /|\ / | \ a / | \ b / | \ / | p \ / | \ A______|_____________B P