1. Sep 17, 2005 #1

   meadow

   

   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
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3. Sep 17, 2005 #2

   whozum

   

   If the point lies on the plane, then it is a solution to the equation.

    

   whozum, Sep 17, 2005

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