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20 March, 15:49

If f (x) = 3x-2, find f (8) - f (5)

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  1. 20 March, 16:06
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    Answer: 9

    Step-by-step explanation:

    f (x) = 3x-2

    Put x = 8 in f (x) = 3x-2

    f (8) = (3*8) - 2

    = 24 - 2

    = 22

    Put x = 5 in f (x) = 3x-2

    f (5) = (3*5) - 2

    = 15 - 2

    = 13

    f (8) - f (5)

    22 - 13

    9
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