Finding Zeroes of a Polynomial
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Lesson Summary:
In this lesson, you will learn how to use a graphing calculator to find consecutive integers that surround the zeroes of a polynomial. By inputting values into a table and analyzing the sign changes, you can determine the exact location of the zeroes of the function. This method allows you to easily locate where the function crosses the x-axis and find the boundaries surrounding the zeroes.
Lesson Description:
Learn how to find the two consecutive integers between which a polynomial is 0 using a graphing calculator.
Questions answered by this video:
- How do you find the zeroes of a polynomial with a graphing calculator?
- How do you find the consecutive integers between which a polynomial is 0 with a table?
- How can you tell where a function crosses 0 by looking at a table?
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Staff Review
This video shows how to plug in a function into a graphing calculator, look in the table, and find where the function crosses 0. The explanation of this topic is good, and you can see how to find these values without a graphing calculator, although it would be more computation.
