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    Fox racer's Avatar
    Fox racer Posts: 13, Reputation: 1
    New Member
     
    #1

    Mar 5, 2009, 05:54 PM
    More math needed#2
    Slope of (0,-3)(3,1) can anytone answer this ? Thanks
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
    Ultra Member
     
    #2

    Mar 9, 2009, 03:04 PM

    The slope of a line is ΔY/ΔX where Δ is the "change" of a value.

    ΔY is calculated by subtracting the two Y-coordinates. Keep the order straight. You don't necessarily get a positive number.
    CrayonScribbles's Avatar
    CrayonScribbles Posts: 52, Reputation: 6
    Junior Member
     
    #3

    Apr 14, 2009, 01:42 PM

    an easy way to do this is range over domain (or Y over X)

    here is how you name your coordinates,

    (X1, Y1)(X2, Y2)

    your equation is

    m=y2-y1/ x2-x1

    Now just fill in your numbers,


    1-(-3)
    _____ =
    3-0

    (stay change switch)

    1+3
    ______ =
    3+0

    4
    __
    3

    your slope is
    4/3

    I hope this helped you, and if it means anything, I'm 14 (in 8th grade) and we did this in my Algebra class.

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