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Math Help - Linear equation

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    Linear equation

    A small business purchases equipment for $1000. After 10 years the salvage value will be $200. Write a linear equation for the value v of the equipment during its 10 years of use. (use straight line depreciation with t=0 when the equipment is purchased)
    Last edited by mr fantastic; April 28th 2010 at 05:54 AM. Reason: Re-titled.
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  2. #2
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    Quote Originally Posted by bready View Post
    A small business purchases equipment for $1000. After 10 years the salvage value will be $200. Write a linear equation for the value v of the equipment during its 10 years of use. (use straight line depreciation with t=0 when the equipment is purchased)
    (time in years ,value in $)

    you have two sets of coordinates (t , v) ...

    (0,1000) and (10,200)

    find the slope between the two points and find v as a linear function of t
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