1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

How to get the equation of the plane. [read this one]

  1. Aug 4, 2005 #1

    the above link is the answer to the problem i'm solving. i was wondering how i'd come up with the equation of the plane "x-y+z=0" when only the vertices of the plane are provided in the problem. thanks in advance.
  2. jcsd
  3. Aug 4, 2005 #2


    User Avatar
    Science Advisor
    Homework Helper

    The equation of a plane through the origin is always of the form ax+by+cz=0.
    Now you can plug in some points. Say, put in (1,1,0) and you'll find a=-b.
    Putting in (0,1,1) b=-c. So the equation reduces to ax-ay+az=0 or x-y+z=0.
  4. Aug 4, 2005 #3
    thanks for the help.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?