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Homework Help: Working backwards to find scalar equations

  1. Mar 25, 2008 #1
    I am given the symmetric equation of the line of intersection of two planes. I also have a point on each plane. Now I have to work backwards to determine the scalar equations of the two planes.

    I can work to get it by saying for example x + 2y + 3z -6 + k(4x - y -z +4) - these are made up numbers. Then if I had the point I would substitute the point into the formula. However, working backwards from the LOI is proving to be a great challenge. Can anyone help start me off?
  2. jcsd
  3. Mar 25, 2008 #2
    any takers??? please???
  4. Mar 26, 2008 #3
    Find two points on the line of intersection. Then you have three points for each plane.
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