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    jadd2011's Avatar
    jadd2011 Posts: 1, Reputation: 1
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    #1

    Jun 4, 2009, 07:51 AM
    graph these coordinates
    graph these coordinates. (0,-2) (2,0) (4,2) what is the equation of this line
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Jun 4, 2009, 08:01 AM

    Get some graph paper and draw the x and y axes. Plot your points, join them by a line. Find the gradient(or slope) by choosing two points and putting them in the formula:



    You have the y-intercept, from your graph.

    Now write



    Replace m by the gradient you obtained, and c by the y intercept.

    Voilą! :)
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