Education Technology

Watch Your P' and Q's

Published on 08/26/2011

Activity Overview

Students use the Rational Zero Theorem to find all rational zeros of a polynomial.

Key Steps

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    Students will investigate the Rational Zero Theorem. Students will identify the number of real roots by graphing, and use the graph to approximate the real roots.

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    Students will then use the Rational Zero Theorem to find all the potential rational zeros of the function. Using the calculator, they will use a list to calculate the y value for each of the potential zeros to find the actual rational zeros.

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    Encourage students to summarize what they have learned from completing the activity.