Chapter 1 Applications of linear equations have been relocated in Section 1. A Separate section “Complex Numbers: Quadratic Equations with Complex Solutions” introduces complex numbers and discusses complex roots of quadratic equations. Polynomial and rational inequalities are now discussed in Section 5. Chapter 2 Expanded discussion of the domain of composite functions with more examples. Chapter 3 New examples of quadratic functions. The procedure for graphing rational functions has been rewritten to identify the relation of the graph to horizontal and oblique asymptotes. Chapter 4 The number e is now introduced in Section 1. A new section on logarithmic scales has been added. Chapter 5 Partial-Fraction Decomposition has been moved to immediately follow Section 2 “Systems of Linear Equations in Three Variables”. Web Online Copy Ratti and McWaters have combined years of lecture notes and classroom experience to bring you a series that connects concepts and maintains course rigor. An extensive array of exercises and learning aids further complements your instruction, which ultimately helps to improve student mathematical understanding and results in the course. Note: You are purchasing a standalone product; Pearson MyLab Mathematics does not come packaged with this content. Pearson MyLab Mathematics is not a self-paced technology and should only be purchased when required by an instructor.