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26 March, 19:56

Evaluate the function rule for the given value. y = 15 • 3^x for x = - 3

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  1. 26 March, 20:49
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    5/9

    Step-by-step explanation:

    y = 15 • 3^x

    Let x = - 3

    y = 15 • 3^ (-3)

    The negative means the exponent goes to the denominator

    y = 15 * 1/3^3

    = 15 * 1/27

    =15/27

    Divide the top and bottom by 3

    =5/9
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