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8 December, 04:47

Problem: Gerri made a function machine. Find the rule for Gerri's function machine.

-1 Goes in - 1 Comes Out. What functions went on?

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  1. 8 December, 04:54
    0
    There are an infinite number of possibilities, and not enough information

    to decide which possibility is really the one inside the function machine.

    Here are a few. Each of these gives the result that you described,

    and there are an infinite number of others:

    f (x) = x

    f (x) = 2x + 1

    f (x) = 10x + 9

    f (x) = x² - 2

    f (x) = 7x² - 8

    f (x) = 31x³ + 30

    f (x) = log (|x|) - 1

    f (x) = ln (|x|) - 1

    f (x) = x tan (45°)

    .

    .

    etc.
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