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20 March, 02:03

Given the function, f (x) = 5 (x+4) ^3/2, which of the following represents its y-intercept

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  1. 20 March, 02:23
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    The y-intercept is at (0,40).

    Step-by-step explanation:

    y = f (x) = 5 (x+4) ^3/2

    We find the y-intercept but putting x = 0 and evaluating:

    y = f (0) = 5 (0 + 4) ^2^3/2

    = 5*4^3/2

    = 5 * (√4) ^3

    = 5 * 2^3

    = 5*8

    = 40.
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