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10 December, 04:31

If ƒ (x) = 4x - 3, what is ƒ (x) - 1?

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  1. 10 December, 05:49
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    F (x) ^-1 is asking for the inverse function of f (x).

    The first step to finding the inverse is:

    1) change f (x) to y

    2) switch x and y

    3) resolve the equation for y =

    f (x) = 4x - 3

    y = 4x - 3

    x = 4y - 3

    add 3 to both sides

    x + 3 = 4y

    divide both sides by 4

    (x + 3) / 4 = y

    y = (x + 3) / 4
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