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    shannabee's Avatar
    shannabee Posts: 4, Reputation: 1
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    #1

    Mar 18, 2009, 09:33 AM
    Functions got me stumped
    I have been out of high school since 1993 and have gotten a little rusty.

    s(t)=-75t+600 to determine the salvage value S(t), in dollars, of a table saw t years after its purchase. How long will it take the saw to depreciate completely.

    -8, 8, 6, and 10 years.
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #2

    Mar 18, 2009, 09:54 AM
    Just set your linear equation equal to 0 and solve for t.



    -8 is out because we can not have negative years.
    shannabee's Avatar
    shannabee Posts: 4, Reputation: 1
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    #3

    Mar 18, 2009, 12:04 PM

    Thanks for your help and I give you a five

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