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Homework Help: How do I know this point lies on the line in the plane?

  1. Sep 26, 2014 #1
    1. The problem statement, all variables and given/known data
    This is the point:


    2. Relevant equations
    x = 4-2t
    y = 3+5t
    z = 7+4t

    3. The attempt at a solution

    Do I just plug in the points and see if I get matching values of t? If not, how do I go about this?
  2. jcsd
  3. Sep 26, 2014 #2

    Ray Vickson

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    Homework Helper

    What is stopping you from just going ahead and trying it out for yourself?
  4. Sep 26, 2014 #3
    I did try it. I'm asking if this is the right way to do this. I do not have any answers for this problem. Can you please tell me if that is the right way to do this?
  5. Sep 26, 2014 #4


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    It is the right way to see if the given point lies on the line. What is your answer?

  6. Sep 26, 2014 #5
    I do not get matching values of t.

    t = -1, -3/5, -9/4
    Last edited: Sep 26, 2014
  7. Sep 26, 2014 #6
    So the point does not lie on the line?
  8. Sep 26, 2014 #7


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    Homework Helper

    It does not.

  9. Sep 27, 2014 #8
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