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6-9.
  1. Find the inverse, f −1 (x), for the following functions. Homework Help ✎

    1. f(x) = 2x

    2. f(x) = log3 x

    3. f(x) = 1oge x

    4. f(x) = 5 · 9 x

Solve for x: log2y = x
Then 'switch' the input and the output.

f −1(x) = log2x

This is the reverse of part (a).

Recall that e is a constant. (It's value is between 2 and 3)

f −1(x) = ex

Be sure to divide both sides by 5 before you solve for x .