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Home > A2C > Chapter 7 > Lesson 7.2.4 > Problem 7-141

7-141.

Find the inverse of each of the functions below. Write your answers in function notation. Homework Help ✎

  1. Let , switch the and the in the equation and solve for .

  2. See part (a).

  3. Let . Switch and . Multiply both sides of the equation by to remove the fraction.

    Distribute and then rewrite the equation so that all the y-terms are on the left side and everything else is on the right side.

    Your equation should look like this: . Factor the left side of the equation and divide both sides by to get y by itself.

    Graph the equation on a graphing calculator to see why this equation is its own inverse.

  4. See part (a).