Example of Finding Undefined Values for a Rational Expression
To determine the values for which the rational expression is undefined, follow the procedure by setting the denominator equal to and solving for the variable :
Factor the quadratic equation:
Set each factor to zero: or or
Thus, the rational expression is undefined for the values and .
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Ch.7 Rational Expressions and Functions - Intermediate Algebra @ OpenStax
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Example of Finding Undefined Values for a Rational Expression
Procedure for Determining the Domain of a Rational Function
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Example of Determining the Domain of the Rational Function
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