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ERIC Number: EJ769626
Record Type: Journal
Publication Date: 2007
Pages: 5
Abstractor: ERIC
ISBN: N/A
ISSN: ISSN-0730-8639
EISSN: N/A
Available Date: N/A
Shapes of the Graphs of Fourth-Degree Polynomials in Terms of Their Coefficients
Flesher, Tatyana; Holder, Eleanor
Mathematics and Computer Education, v41 n1 p12-16 Win 2007
One of the main problems in undergraduate research in pure mathematics is that of determining a problem that is, at once, interesting to and capable of solution by a student who has completed only the calculus sequence. It is also desirable that the problem should present something new, since novelty and originality greatly increase the enthusiasm of the student if no one has previously solved it. One of the most accessible topics for undergraduate research is the theory of polynomials. There are a great number of good textbooks on the theory of equations that can be used for preliminary reading and which will prepare the student for work with more advanced scientific texts. At the same time, the student is familiar with polynomials in terms of their graphs and basic properties, as discussed in calculus. This intertwining of familiar material and new algebraic approach helps to create an atmosphere of comfort and interest for the student. In addition, the use of computer software incorporates the flavor of modern science and eliminates long calculations. This paper focuses on the stages of development of a research project on polynomials and the results that were obtained. The problem of characterizing cubic polynomials in terms of their coefficients arose during the study of the graphs of polynomials in pre-calculus. The solution to this problem was published, and that work served as a starting point for the following problem, which was proposed to the student: "To describe, in terms of the coefficients, all possible shapes of polynomials of degree higher than three." In this article, the authors present a complete description of the shapes of fourth-degree polynomials in terms of their coefficients. (Contains 6 figures.)
MATYC Journal Inc. Mathematics and Computer Education, P.O. Box 158, Old Bethpage, NY 11804. Tel: 516-822-5475; Web site: http://www.macejournal.org
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A
Author Affiliations: N/A