All through both volumes [Functions & Graphs and The Methods of Coordinates], one finds a careful description of the step-by-step thinking process that leads up to the correct definition of a concept or to an argument that clinches in the proof of a theorem. We are ... very fortunate that an account of this caliber has finally made it to printed pages... Anyone who has taken this guided tour will never be intimidated by n ever again... High school students (or teachers) reading through these two books would learn an enormous amount of good mathematics. More importantly, they would also get a glimpse of how mathematics is done.
-- H. Wu, The Mathematical Intelligencer
Preface * Foreword * Introduction * 1. Examples * 2. The Linear Function * 3. The Function y=|x| * 4. The Quadratic Trinomial * 5. The Linear Fractional Function * 6. Power Functions * 7. Rational Functions * Problems for Independent Solution * Answers and Hints to Problems and Exercises Marked with the Sign +