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Math Help - Direction of Vector

  1. #1
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    Direction of Vector

    Find the parametric equations for the line through (1, -1, 1) and parallel to the line x+2=0.5y=z-3

    How do I obtain the direction of the line? Thanks
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  2. #2
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    Hello, c_323_h!

    Find the parametric equations for the line through (1,-1,1)
    and parallel to the line x+2\;=\;\frac{1}{2}y\;=\;z-3

    How do I obtain the direction of the line?

    They gave us the symmetric form of the line: . \frac{x + 2}{1}\;=\;\frac{y}{2}\;=\;\frac{z-3}{1}

    The direction vector is: . \langle1,\,2,\,1\rangle . . . the denominators.

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