Precalculus: Functions and Graphs, 1e   About the Book   Challenge Problems   Selected Solutions   Study Tips   TI Downloads   Equations, Equalities and Modeling   Functions and Graphs   Polynomial and Rational Functions   Exponential and Logarithmic Functions   The Trigonometric Functions   Trigonometric Identities and...   Applications of Trigonometry   Systems of Equations and Inequalities   Matrices and Determinants   The Conic Sections   Sequences, Series and Probability