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1 November, 08:00

Exponential Growth/Decay Function The value of a car is $21,500. It loses 12% of its value every year.

(a) Write a function that represents the value y (in dollars) of the car after x years.

(b) Use the function to estimate the value of the car after 6 years. (round your answer to the nearest whole number)

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  1. 1 November, 11:47
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    (a) 21500 (0.88) ᣔx

    y = A (1-r) ᣔx

    = 21500 (1-0.12) ᣔx

    = 21500 (0.88) ᣔx

    (b) $9,985

    21500 (0.88) ᣔ6 = 9985

    · 0.88ᣔ6 = 0.46440408

    · 21500 * 0.46440408 = 9984.68 - > 9985
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