How do i get the anser on here go as in depth as posible

as you should already know to get the inverse of any expression, we start off by doing a quick switcheroo on the variables, and then solve for "y".

ummm seems that u didnt post the attachement !

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.