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Math Help - finding x

  1. #1
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    Jul 2010
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    finding x

    If the line through (x,4) and (3,7) is parallel to one through (x,-1) and (5,1) find x.
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  2. #2
    Member HappyJoe's Avatar
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    Two lines are parallel, if they have the same slope.

    What are the slopes of the two lines in your question?
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