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Math Help - equation to a plane

  1. #1
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    equation to a plane

    have some trouble with this question.

    decide the equation for the plane that goes through the points P1: (3,4,0), P2: (4,3,1), P3: (3,2,4) (in the same coordinate system) assume that the coordinate system is orthonormal.
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  2. #2
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    Re: equation to a plane

    Quote Originally Posted by paulaa View Post
    have some trouble with this question.
    decide the equation for the plane that goes through the points P1: (3,4,0), P2: (4,3,1), P3: (3,2,4) (in the same coordinate system) assume that the coordinate system is orthonormal.
    First let R=<x,y,z> then the plane is:
    \left( {\overrightarrow {P_1 P_2 }  \times \overrightarrow {P_1 P_3 } } \right) \cdot \overrightarrow {P_1 R}  = 0
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  3. #3
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    Re: equation to a plane

    V1 = P2 - P1
    V2 = P3 - P2

    What do you know about Cross Products and Normal Vectors?
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