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Math Help - Linear Algebra - Parametric Equations; intersection of two lines

  1. #1
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    Linear Algebra - Parametric Equations; intersection of two lines

    Having troubles with this question:
    Consider the lines L1 and L2 where

    L1: x= 1+s and L2 x=12-t
    y= -4-2 y= 3-4t

    If (a,b) is the point of intersection of lines L1 and L2, find a

    Thanks!
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by funkyfunk123 View Post
    Having troubles with this question:
    Consider the lines L1 and L2 where

    L1: x= 1+s and L2 x=12-t
    y= -4-2 y= 3-4t

    If (a,b) is the point of intersection of lines L1 and L2, find a

    Thanks!
    set the x's in each line equal to each other, do the same for the y's. solve for s and t and you can find the intersecting point
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