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    hniang's Avatar
    hniang Posts: 3, Reputation: 1
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    #1

    Jan 24, 2011, 05:43 PM
    Equation of line
    What is an equation of the line that passes through the points (3,-3) and (-3,-3)?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Jan 24, 2011, 11:33 PM

    Find the gradient m, using:



    Put that in:



    Put any point, (3, -3) or (-3, -3) in the equation and solve for c.

    You'll get your equation.

    Another way is to make a quick sketch and from what you already know, you should be able to give the equation of the line quickly.

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