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The future of education. openstax.org Contents Preface 1 1 Functions 7 Introduction to Functions 7 1.1Functions and Function Notation 7 1.2Domain and Range 34 1.3Rates of Change and Behavior of Graphs 56 1.4Composition of Functions 73 1.5Transformation of Functions 89 1.6Absolute Value Functions 121 1.7Inverse Functions 133 Chapter Review 149 Exercises 153 2 Linear Functions 163 Introduction to Linear Functions 163 2.1Linear Functions 164 2.2Graphs of Linear Functions 186 2.3Modeling with Linear Functions 211 2.4Fitting Linear Models to Data 225 Chapter Review 239 Exercises 240 3 Polynomial and Rational Functions 251 Introduction to Polynomial and Rational Functions 251 3.1Complex Numbers 252 3.2Quadratic Functions 262 3.3Power Functions and Polynomial Functions 283 3.4Graphs of Polynomial Functions 302 3.5Dividing Polynomials 325 3.6Zeros of Polynomial Functions 336 3.7Rational Functions 350 3.8Inverses and Radical Functions 376 3.9Modeling Using Variation 389 Chapter Review 399 Exercises 403 4 Exponential and Logarithmic Functions 409 Introduction to Exponential and Logarithmic Functions 409 4.1Exponential Functions 410 4.2Graphs of Exponential Functions 429 4.3Logarithmic Functions 443 4.4Graphs of Logarithmic Functions 452 4.5Logarithmic Properties 474 4.6Exponential and Logarithmic Equations 486 4.7Exponential and Logarithmic Models 499 4.8Fitting Exponential Models to Data 518 Chapter Review 534 Exercises 539 5 Trigonometric Functions 549 Introduction to Trigonometric Functions 549 5.1Angles 550 5.2Unit Circle: Sine and Cosine Functions 573 5.3The Other Trigonometric Functions 594 5.4Right Triangle Trigonometry 610 Chapter Review 623 Exercises 626 6 Periodic Functions 631 Introduction to Periodic Functions 631 6.1Graphs of the Sine and Cosine Functions 631 6.2Graphs of the Other Trigonometric Functions 651 6.3Inverse Trigonometric Functions 672 Chapter Review 685 Exercises 686 7 Trigonometric Identities and Equations 693 Introduction to Trigonometric Identities and Equations 693 7.1Solving Trigonometric Equations with Identities 693 7.2Sum and Difference Identities 704 7.3Double-Angle, Half-Angle, and Reduction Formulas 719 7.4Sum-to-Product and Product-to-Sum Formulas 732 7.5Solving Trigonometric Equations 740 7.6Modeling with Trigonometric Functions 755 Chapter Review 777 Exercises 781 8 Further Applications of Trigonometry 787 Introduction to Further Applications of Trigonometry 787 8.1Non-right Triangles: Law of Sines 787 8.2Non-right Triangles: Law of Cosines 805 8.3Polar Coordinates 819 8.4Polar Coordinates: Graphs 833 8.5Polar Form of Complex Numbers 852 8.6Parametric Equations 863 8.7Parametric Equations: Graphs 876 8.8Vectors 888 Chapter Review 910 Exercises 914 9 Systems of Equations and Inequalities 921 Introduction to Systems of Equations and Inequalities 921 9.1Systems of Linear Equations: Two Variables 922 9.2Systems of Linear Equations: Three Variables 941 9.3Systems of Nonlinear Equations and Inequalities: Two Variables 953 Access for free at openstax.org 9.4Partial Fractions 965 9.5Matrices and Matrix Operations 975 9.6Solving Systems with Gaussian Elimination 988 9.7Solving Systems with Inverses 1002 9.8Solving Systems with Cramer's Rule 1017 Chapter Review 1030 Exercises 1033 10 Analytic Geometry 1041 Introduction to Analytic Geometry 1041 10.1The Ellipse 1042 10.2The Hyperbola 1058 10.3The Parabola 1075 10.4Rotation of Axes 1091 10.5Conic Sections in Polar Coordinates 1106 Chapter Review 1117 Exercises 1119 11 Sequences, Probability and Counting Theory 1125 Introduction to Sequences, Probability and Counting Theory 1125 11.1Sequences and Their Notations 1125 11.2Arithmetic Sequences 1140 11.3Geometric Sequences 1152 11.4Series and Their Notations 1161 11.5Counting Principles 1175 11.6Binomial Theorem 1186 11.7Probability 1193 Chapter Review 1204 Exercises 1207 12 Introduction to Calculus 1215 Introduction to Calculus 1215 12.1Finding Limits: Numerical and Graphical Approaches 1215 12.2Finding Limits: Properties of Limits 1227 12.3Continuity 1237 12.4Derivatives 1252 Chapter Review 1275 Exercises 1277 A Basic Functions and Identities 1283 Answer Key 1287 Index 1447 Access for free at openstax.org