Sullivan, Michael Precalculus essentials : enhanced with graphing utilities Michael Sullivan, Michael Sullivan, III - 4th ed - Upper Saddle River, NJ Pearson Prentice Hall 2006 - p. cm ISBN: 131866680 ISSN: 2005048788 Subjects--Topical Terms: Functions - TextbooksGraphic calculators - TextbooksPrecalculus - Graphic methods - Textbooks Dewey Class. No.: QA331.3 .S926 2006 512/.1