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Preface............................................................................................................................................ 4ÀúÀÚ¼Ò°³.......................................................................................................................................... 5Digital SAT Math Section °³¿ä.................................................................................................... 6Digital SAT Math for 800 °øºÎ¹ý................................................................................................ 7Chapter 1 Linear function and Exponential function.....................................................111.1 Linear function.........................................................................................................121.2 Exponential Function..............................................................................................141.3 Exponential Modeling.............................................................................................161.4 System of linear equations....................................................................................171.5 Inequalities................................................................................................................191.6 Absolute Value Equation.......................................................................................201.7 Chapter 1 from A to Z Problems.........................................................................231.8 Explanation...............................................................................................................32Chapter 2 Quadratic function and Polynomial function................................................352.1 Quadratic function...................................................................................................362.2 Complex number.....................................................................................................392.3 Polynomial Function................................................................................................412.4 Chapter 2 from A to Z Problems.........................................................................482.5 Explanation...............................................................................................................56Chapter 3 Radical expressions and Equations..............................................................593.1 Exponents and Radicals........................................................................................603.2 Radical equations....................................................................................................613.3 Chapter 3 from A to Z Problems.........................................................................633.4 Explanation...............................................................................................................68Chapter 4 Percent................................................................................................................714.1 Percent......................................................................................................................724.2 Rate............................................................................................................................754.3 Unit conversion-Squared units and Cubic units..............................................774.4 Chapter 4 from A to Z Problems.........................................................................804.5 Explanation...............................................................................................................88Chapter 5 Word Problem ..................................................................................................915.1 3 Types of Word Problems...................................................................................925.2 Chapter 5 from A to Z Problems.........................................................................945.3 Explanation.............................................................................................................101Chapter 6 Probability ........................................................................................................1056.1 Probablity................................................................................................................1066.2 Chapter 6 from A to Z Problems.......................................................................1106.3 Explanation.............................................................................................................116Chapter 7 Geometry .........................................................................................................1197.1 Fundamental Geometric formulas......................................................................1207.2 Angle Relationship................................................................................................1257.3 Properties of Triangle...........................................................................................1267.4 Similarity...................................................................................................................1297.5 Trigonometry..........................................................................................................1337.6 Circle........................................................................................................................1367.7 Properties of Circle................................................................................................1367.8 Chapter 7 from A to Z Problems-Part 1.Triangle and Polygon......................... 1407.9 Chapter 7 from A to Z Problems-Part 2. Circle.............................................1487.10 Explanation...........................................................................................................154Chapter 8 Statistics ...........................................................................................................1598.1 Describing Distributions with Numbers.............................................................1608.2 Box and Whiskers Plot.........................................................................................1648.3 Distribution, Population and Sample..................................................................1658.4 Observational Study and Experiment................................................................1688.5 Regression Analysis.............................................................................................1708.6 Chapter 8 from A to Z Problems.......................................................................1748.7 Explanation.............................................................................................................185Chapter 9 Practice Tests .................................................................................................189