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Math Help - Planes and Lines!

  1. #1
    Junior Member JoeyCC's Avatar
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    Planes and Lines!


    Anyone please?

    I can't find a way of getting a line equation from the point!

    Regards,
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  2. #2
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    Quote Originally Posted by JoeyCC View Post

    Anyone please?

    I can't find a way of getting a line equation from the point!

    Regards,
    The equation through P and perpendicular to the plane is: <1,0,-2>+t<1,1,-2>.
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  3. #3
    Junior Member JoeyCC's Avatar
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    Therefore the line intersects with the plane at:

    (1 + t) + t -2(-2 -2t) = -3

    .: t = -4/3

    .: The exact point of intersection is:

    (-4/3, -4/3, -8/3)

    What next?
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