Equation of a Plane (The concept behind it.)

For more problems about planes see this playlist: http://goo.gl/svLNAk Trying to understand the equation of a plane using the dot product. Writing the equation of a plane equidistant from two given points. I used the app Explain Everything on my iPad to make the video. Here's a link to it: http://itunes.apple.com/us/app/explai...