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23 February, 12:04

A phone was purchased for $318. Each year the value is 1/2 of its value the previous year. Write a function that describes the value of the phone, in dollars, as a function of the time in years, t, after the initial purchase?

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  1. 23 February, 12:06
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    y=318 (1-0.5) ^x

    Step-by-step explanation:

    x represents the amount of years and y is the ending price
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