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Math Help - 3d coordinate geometry

  1. #1
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    3d coordinate geometry

    when i plotted x+y=z in xyz plane i got a straight line.what do i infer from this
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  2. #2
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    Quote Originally Posted by prasum View Post
    when i plotted x+y=z in xyz plane i got a straight line.what do i infer from this
    Sorry, but the text of your question doesn't make sense ...

    The given equation describes a plane which passes through the origin and it's normal vector is \vec n = (1,1,-1).

    And the intersection of this plane with one of the coordinate planes (xy, xz or yz) is a straight line. Therefore the given plane isn't parallel to any of the three coordinate planes.

    But as I mentioned above there isn't a xyz plane.
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