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Homework Help: Vector Equation Question

  1. Apr 6, 2013 #1
    1. The problem statement, all variables and given/known data

    Find the vector equation of the line r = (0,2,-1)+t(1,0,1), t belongs to real numbers, reflected in the plane 2x-y+z-9 = 0.

    I am not sure on how to start solving this question and how do you reflect a line in a plane? What method would you use?

    Thank you for your help!

    2. Relevant equations
    not sure

    3. The attempt at a solution
    not sure how to attempt the question
  2. jcsd
  3. Apr 7, 2013 #2

    Simon Bridge

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    Think of the plane as a mirror ... all you need is the reflection of any vector pointing along the line, and one point on the line.
  4. Apr 7, 2013 #3
    ah I solved the question! thanks for your help! :D
  5. Apr 8, 2013 #4

    Simon Bridge

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    No worries.
    If you showed us your solution, it would help others stuck in the same place you were.
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