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6 January, 23:06

Julie is running a 5-kilometer race. she runs 1 kilometer every 5 minutes, julie's distance from the finish line after x-minutes is represented by the function: f (x) = 5 - 1/2 x

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  1. 7 January, 02:55
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    Each minute Julie runs 0.2 of a kilometer

    so after x minutes she runs 0.2x of a kilometer

    so the function is 5 - 0.2x

    or as a fractions f (x) = 5 - (1/5) x
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