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1-80.

    Consider and . 1-80 HW eTool (Desmos). Homework Help ✎

  1. Use any method to determine the points of intersection of and .

    One method is to graph and on the same set of axes and locate the point of intersection.

    To graph , make a table. You will need to use -values from  to .

    To use the equations, set  and solve the resulting quadratic equation.

    Another method would be to make a table of values for each function and compare table values to find matches.

    Two points of intersection: and .

  2. What is

    Substitute:

    Simplify:

  3. What is

    How is this different from

    Remember to put parentheses around and use the Distributive Property correctly.

Use the blank graph in the eTool below to solve the problem.
Click the link at right for the full version of the eTool: Int3 1-80 HW eTool