1. The problem statement, all variables and given/known data A plane lies inbetween two points A=(2,0,2) and B=(4,2,0). Let a point P=(x,y,z) be equally far away from A as from B. Find the equation for this plane (like in this format: [PLAIN]http://upload.wikimedia.org/math/6/7/8/67834a730a04bb1f3d6ceab80f5284e4.png [Broken]) [Broken] 3. The attempt at a solution Well.. What can I say. I basically got two points and I'm supposed to make a plane out of it (lmao), with no directional vectors or anything. I also thought that a plane was infinitely big so I don't understand how a plane can be inbetween two points as explained in the assignment... The plane contains the two points is more correct to say, right? Anyway can't you make an infinte number of planes with the given information? While a plane's equation (like this: [PLAIN]http://upload.wikimedia.org/math/6/7/8/67834a730a04bb1f3d6ceab80f5284e4.png [Broken]) [Broken] describes one specific plane with a specific starting point and orientation?