CPM Homework Banner

Home > PC > Chapter 1 > Lesson 1.4.2 > Problem 1-149

1-149.
  1. Given f(x) = . Homework Help ✎

    1. Find f −1(x).

    2. Sketch f(x) and f1(x) on the same set of axes.

    3. Find f1(f(6)) and f(f −1(2)). What do you notice?

Change f(x) to y.
Switch every x to y and every y to x.
Solve for y.

Composing f and f −1 in either order returns the original number.