Author Description

For courses in Precalculus. Ties together concepts using a functions approach Known for their ability to connect with students, Sullivan and Sullivan focus on the fundamentals (preparing for class, practice with homework, reviewing key concepts), encouraging the conceptual understanding and mastery of basic skills needed for this and future courses. Part of the Concepts Through Functions Series, Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry, 4th Edition introduces functions at the start and maintains a continuous theme by introducing/developing a new function in every chapter. Graphing utility coverage is optional and can be included at the instructor's discretion.