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Ideal for courses that require the use of a graphing calculator, PRECALCULUS: REAL MATHEMATICS, REAL PEOPLE, 7th Edition, features quality exercises, interesting applications, and innovative resources to help you succeed. True to the book's focus on student support, selected examples include notations directing you to previous sections where you can review concepts and skills needed to master the material at hand. The book's careful writing and detailed solutions that begin and end on the same page, make it accessible and easy-to-read. Side-by-side solutions show algebraic, graphical, and numerical representations of the mathematics and support a variety of learning styles, and examples throughout feature real-life scenarios show you the relevance of mathematics in your life and future career.

Precalculus: Real Mathematics, Real People

1. FUNCTIONS AND THEIR GRAPHS.

Introduction to Library of Functions.

1.1 Lines in the Plane. 1.2 Functions. 1.3 Graphs of Functions. 1.4 Shifting, Reflecting, and Stretching Graphs. 1.5 Combinations of Functions. 1.6 Inverse Functions. 1.7 Linear Models and Scatter Plots. Chapter Summary. Review Exercises. Chapter Test. Proofs in Mathematics.

2. POLYNOMIAL AND RATIONAL FUNCTIONS.

2.1 Quadratic Functions. 2.2 Polynomial Functions of Higher Degree. 2.3 Real Zeros of Polynomial Functions. 2.4 Complex Numbers. 2.6 Rational Functions and Asymptotes. 2.7 Graphs of Rational Functions. 2.8 Quadratic Models. Chapter Summary. Review Exercises. Chapter Test. Proofs in Mathematics. Progressive Summary (Chapters 1 and 2).

3. EXPONENTIAL AND LOGARITHMIC FUNCTIONS.

3.1 Exponential Functions and Their Graphs. 3.2 Logarithmic Functions and Their Graphs. 3.3 Properties of Logarithms. 3.4 Solving Exponential and Logarithmic Equations. 3.5 Exponential and Logarithmic Models. 3.6 Nonlinear Models. Chapter Summary. Review Exercises. Chapter Test. Cumulative Test: Chapters 1-3. Proofs in Mathematics. Progressive Summary (Chapters 1-3).

4. TRIGONOMETRIC FUNCTIONS.

4.1 Radian and Degree Measure. 4.2 Trigonometric Functions: The Unit Circle. 4.3 Right Triangle Trigonometry. 4.4 Trigonometric Functions of Any Angle. 4.5 Graphs of Sine and Cosine Functions. 4.6 Graphs of Other Trigonometric Functions. 4.7 Inverse Trigonometric Functions. 4.8 Applications and Models. Chapter Summary. Review Exercises. Chapter Test. Library of Parent Functions Review.

Proofs in Mathematics.

5. ANALYTIC TRIGONOMETRY.

5.1 Using Fundamental Identities. 5.2 Verifying Trigonometric Identities. 5.3 Solving Trigonometric Equations. 5.4 Sum and Difference Formulas. 5.5 Multiple-Angle and Product-to-Sum Formulas. Chapter Summary. Review Exercises. Chapter Test. Proofs in Mathematics.

6. ADDITIONAL TOPICS IN TRIGONOMETRY.

6.1 Law of Sines. 6.2 Law of Cosines. 6.3 Vectors in the Plane. 6.4 Vectors and Dot Products. 6.5 Trigonometric Form of a Complex Number. Chapter Summary. Review Exercises. Chapter Test. Cumulative Test: Chapters 4-6. Proofs in Mathematics.

Progressive Summary (Chapters 1-6).

7. LINEAR SYSTEMS AND MATRICES.

7.1 Solving Systems of Equations. 7.2 Systems of Linear Equations in Two Variables. 7.3 Multivariable Linear Systems. 7.4 Matrices and Systems of Equations. 7.5 Operations with Matrices. 7.6 The Inverse of a Square Matrix. 7.7 The Determinant of a Square Matrix. 7.8 Applications of Matrices and Determinants. Chapter Summary. Review Exercises. Chapter Test. Proofs in Mathematics.

8. SEQUENCES, SERIES, AND PROBABILITY.

8.1 Sequences and Series. 8.2 Arithmetic Sequences and Partial Sums. 8.3 Geometric Sequences and Series. 8.4 The Binomial Theorem. 8.5 Counting Principles. 8.6 Probability. Chapter Summary. Review Exercises. Chapter Test. Proofs in Mathematics.

9. TOPICS IN ANALYTIC GEOMETRY.

9.1 Conics: Circles and Parabolas. 9.2 Ellipses. 9.3 Hyperbolas and Rotation of Conics.

9.4 Parametric Equations. 9.5 Polar Coordinates. 9.6 Graphs of Polar Equations.

9.7 Polar Equations of Conics. Chapter Summary. Review Exercises. Chapter Test.

Cumulative Test: Chapters 7-9.Proofs in Mathematics. Progressive Summary (Chapters 3-9).

10. ANALYTIC GEOMETRY IN THREE DIMENSIONS.

10.1 The Three-Dimensional Coordinate System. 10.2 Vectors in Space. 10.3 The Cross Product of Two Vectors. 10.4 Lines and Planes in Space. Chapter Summary. Review Exercises. Chapter Test. Proofs in Mathematics.

Appendix A: Technology Support Guide.

Appendix B: Review of Graphs, Equations, and Inequalities (WEB only).

B.1 The Cartesian Plane. B.2 Graphs of Equations. B.3 Solving Equations Algebraically and Graphically. B.4 Solving Inequalities Algebraically and Graphically.

B.5 Representing Data Graphically.

Appendix C: Concepts in Statistics (WEB only).

C.1 Measures of Central Tendency and Dispersion. C.2 Least Squares Regression.

Appendix D: Variation (WEB only).

Appendix E: Solving Linear Equations and Inequalities (WEB only).

Appendix F: Systems of Inequalities (WEB only).

F.1 Solving Systems of Inequalities. F.2 Linear Programming.

Appendix G: Mathematical Induction (WEB only).