Electronic Proceedings of the Twenty-fifth Annual International Conference on Technology in Collegiate Mathematics

Boston, Massachusetts, March 21-24, 2013

Paper C045

This is an electronic reprint, reproduced by permission of Pearson Education Inc. Originally appeared in the Proceedings of the Twenty-fifth Annual International Conference on Technology in Collegiate Mathematics, ISBN-10: 0133866726, Copyright (C) 2014 by Pearson Education, Inc.


Using the TI-89 to Delve Deeper Into the Graphs of Polynomial Functions

Jay L. Schiffman


Rowan University

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ABSTRACT

With the aid of the TI-89, we consider the relationship between the general cubic and location of extrema and inflection points, the connection between a cubic having distinct real roots and the abscissa of the inflection point, the link between multiple roots and the derivative, and the abscissa of the vertex of a quadratic having distinct real roots.

Keyword(s): college algebra, TI-89