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Home > CCA2 > Chapter 3 > Lesson 3.2.4 > Problem 3-102

3-102.

Estacia wants to learn more about excluded values. Homework Help ✎

  1. Explain to Estacia why cannot be in the expression .

    What happens when you substitute for ?

     does not work here because it makes the expression undefined since dividing by is not possible.

  2. Find the excluded values of in each of the expressions of problem.

    What values make the denominator equal to ? These are known as excluded values.

  3. Create an expression that has the excluded values of and . Be prepared to share your expression to the class.

    Answers vary. Make sure that these two values make the denominator equal to .