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Write the equation of the inverse function, f –1(x), for each of the following functions. Homework Help ✎

  1. Start by solving for x.
    y = log3x
    x = 3y
    Now 'rename the x and y'.

    y = 62x
    2x = log6y

    f −1(x) = ____________

    f −1(x) = 3x

  2. Notice that y = π² is a horizontal line. What is the inverse of a horizontal line?

  3. Refer to hint in part (b).

    Before you convert to a logarithm, subtract k from both sides.