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for the function f(x)=(3-4x)^2, find f-1. determine whether f-1 is a function

  • algebra -

    since f is a parabola, there are two values of x for each value of y.

    So, f^-1 cannot be a function.

    f^-1(x) = (3-√x)/4

  • algebra -

    thanks for the help

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