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Homework Help: Lines and planes

  1. Sep 19, 2010 #1
    Find the parametric equations find the line through point (0,1,2) that is perpendicular to the line x=1+t, y=1-t, z=2t

    solution:
    a=<a1,a2,a3>
    1+t=a1s
    1-t=a2s+1
    2t=a3s+2

    a1=1/s+t/2
    a2=-t/s
    a3=2t/s-2/s

    <1/s+t/s,-t/s,2t/s-2/s>*<1,-1,2> = 0 =>t=1/2
    P(3/2,1/2,1)
    v=<-3/2,1/2,1>

    also the latex does not seem to be working for me it does not update after an initial posting
    x=3/2t, y=t/2+1, z=t+2
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
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