Here's the question you clicked on:
JerryP
Is there any known way to construct an infinite number of Cartesian coordinates (x and y pairs) for any given [line] length where every single abscissa (x coordinate) and ordinate (y coordinate) pair sum to the given [line] length?
Thi may help you: http://is.gd/YplMSN
Good resource but no answer to my question. Anything else? Thanks:)