Introduction 1 Unit 1: Getting Started with Pre-Calculus 5 Chapter 1: Preparing for Pre-Calculus 7 Chapter 2: Operating with Real Numbers 25 Chapter 3: Cementing the Building Blocks of Pre-Calculus Functions 43 Chapter 4: Operating on Functions 65 Unit 2: Getting the Grip on Graphing 93 Chapter 5: Graphing Polynomial Functions 95 Chapter 6: Exponential and Logarithmic Functions 131 Chapter 7: Piece-Wise and Greatest-Integer Functions 159 Unit 3: The Essentials of Trigonometry 171 Chapter 8: Circling In on Angles 173 Chapter 9: Homing In on the Friendliest Angles 201 Chapter 10: Picturing Basic Trig Functions and Reciprocal Functions 217 Chapter 11: Graphing and Transforming Trig Functions 237 Unit 4: Identities and Special Triangles 267 Chapter 12: Identifying with Trig Identities: The Basics 269 Chapter 13: Advancing with Advanced Identities 297 Chapter 14: Getting the Slant on Oblique Triangles 327 Unit 5: Analytic Geometry 361 Chapter 15: Coordinating with Complex Numbers 363 Chapter 16: Warming Up to Polar Coordinates 379 Chapter 17: Relating Conics to Sliced Cones 399 Unit 6: Systems, Sequences, and Series 443 Chapter 18: Streamlining Systems of Equations 445 Chapter 19: Making Matrices Work 473 Chapter 20: Sequences and Series 499 Chapter 21: Expanding Binomials for the Real World 519 Unit 7: Onward to Calculus 533 Chapter 22: Lining Up the Tools 535 Chapter 23: Proceeding with Successful Procedures 557 Index 573.