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Home > A2C > Chapter 4 > Lesson 4.2.1 > Problem 4-85

4-85.

Given  and  :  2-101 HW eTool (Desmos)  Homework Help ✎

  1. Sketch the graphs of the two functions.

    What are the parent graphs of each function? How is each function transformed?

  1. Solve .

    Solve:

  1. Solve .

    See part (b).

  1. Solve .

    See part (b).

  1. Solve .

    See part (b).

  1. For how many values of does equal ?  Explain.

    Look at the graph from part (a).

    Three values because the graphs cross three times.

  2. Find and simplify an expression for .

    Use the eTool below to solve the parts of the problem.
    Click the link at right for the full version of the eTool: CCA2 2-101 HW eTool