Daniel Kennedy

For courses in Precalculus The Rule of Four: A Balanced Approach Precalculus: Graphical, Numerical, Algebraic provides a balanced approach to problem solving and a consistent transition from Precalculus to Calculus. A principal feature of this text is the balance among the algebraic, numerical, graphical, and verbal methods of representing problems: the rule of 4. This approach reinforces the idea that to understand a problem fully, students need to understand it algebraically as well as graphically and numerically. The 10th Edition introduces graphing technology as an essential tool for mathematical discovery and effective problem solving. This edition also features a full chapter on Statistics to help students see that statistical analysis is an investigative process.

For courses in Precalculus The Rule of Four: A Balanced Approach Precalculus: Graphical, Numerical, Algebraic provides a balanced approach to problem solving and a consistent transition from Precalculus to Calculus. A principal feature of this text is the balance among the algebraic, numerical, graphical, and verbal methods of representing problems: the rule of 4. This approach reinforces the idea that to understand a problem fully, students need to understand it algebraically as well as graphically and numerically. The 10th Edition introduces graphing technology as an essential tool for mathematical discovery and effective problem solving. This edition also features a full chapter on Statistics to help students see that statistical analysis is an investigative process.

'There are magical places everywhere. Other worlds tucked away inside our own, like strawberries mixed up in a great big cake. Nobody talks about them, because nobody wants to spoil the secret, but they're out there, beyond ordinary looking gates, just waiting to be found and tasted. Only you have to know what to feel when you do... because it's feeling things that makes them magical.' Dylan, an enigmatic nine-year-old with a gift for asking questions, unexpectedly befriends his grandfather, an ill-mannered eighty-seven-year-old with an extraordinary way of answering them. What follows is a journey through time; of imagination revealing truth, and friendship overcoming loss.

For use in a graphing required precalculus course, this nationally recognized author team has created a text with the perfect balance of graphical and algebraic representation. With examples and exercises for all levels of students, a focus on the twelve basic functions, and a new section on Data Analysis and Statistical Inference, this is the most current and effective precalculus text on the market today.