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50 Years of ERIC
50 Years of ERIC
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ERIC Number: EJ436645
Record Type: CIJE
Publication Date: 1991
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0025-5769
The Sign-Chart Method for Solving Inequalities.
Dobbs, David E.; Peterson, John C.
Mathematics Teacher, v84 n8 p657-64 Nov 1991
The sign-chart method is often used to solve polynomial inequalities involving products or quotients. Presented are examples that extend this method to solve higher-degree polynomial, radical, exponential, logarithmic, absolute-value, and trigonometric inequalities and whose graphic representations lead to intuitive discussions of continuity. (MDH)
Publication Type: Journal Articles; Guides - Classroom - Learner; Guides - Classroom - Teacher
Education Level: N/A
Audience: Teachers; Practitioners
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Graphing (Mathematics)