ERIC Number: EJ436645
Record Type: Journal
Publication Date: 1991
Reference Count: N/A
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
Authoring Institution: N/A