The market leading textbook in precalculus is now available in a cost-saving paperback format. PRECALCULUS, ENHANCED WEBASSIGN EDITION contains the same sound mathematics found in the authors' original text, PRECALCULUS: MATHEMATICS FOR CALCULUS, Sixth Edition plus full support of Cengage Learning's powerful online homework program, Enhanced WebAssign. Each new Enhanced WebAssign Edition features the Start Smart Guide for Students, a simple step-by-step how-to booklet for getting started with online homework. The result is a customized resource that will better prepare your students for future courses in mathematics and sciences. In PRECALCULUS: MATHEMATICS FOR CALCULUS, Sixth Edition best-selling authors, James Stewart, Lothar Redlin and Saleem Watson refine their focus on problem solving and mathematical modeling to provide students with a solid foundation in the principles of mathematical thinking. The authors explain explains critical concepts simply and clearly, without glossing over difficult points to provide complete coverage of the function concept, and integrate a significant amount of graphing calculator material to help students develop insight into mathematical ideas.