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Homework Help: Easy calc 3 question: points on a plane

  1. Sep 17, 2005 #1

    meadow

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    The question asks:
    Which of the points P(3,2,1), Q(2,3,1),R(1,4,1) lie on the plane
    3(x-1)+4y-5(z+2)=0?

    I know this is a pretty easy problem...but I am drawing a blank on where to start? Should I form vectors from each point ? If so, then what?

    A little lost!

    Thanks
     
    meadow, Sep 17, 2005
  2. jcsd
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  3. Sep 17, 2005 #2

    whozum

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    If the point lies on the plane, then it is a solution to the equation.
     
    whozum, Sep 17, 2005
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