Preface iv 이 책의 특징 v 저자소개 vi The Structure of Digital SAT ...................................................................................................1 Paper SAT vs New Digital SAT ...............................................................................................2 Paper SAT Math vs New Digital SAT Math...........................................................................4 The Math Section Overview : 4 Math Topic Categories ...................................................4 High-level breakdown of each concept.............................................................................5 How to get a high score in The Digital SAT math..............................................................6 The Algebra section of the SAT Math..................................................................................9 Solving Linear Equations....................................................................................................................................10 Interpreting Linear Functions : Slope and Intercepts...................................................................................13 Linear equation word problem.........................................................................................................................20 Graphing Linear Equations................................................................................................................................26 Linear function word problems........................................................................................................................30 Systems of linear inequalities word problems...............................................................................................33 Solving systems of linear equations................................................................................................................38 Passport to Advanced Math section of the SAT Math......................................................41 Radicals and Rational Exponentials ...............................................................................................................42 Operations with irrational expressions............................................................................................................47 Rational Operation and Equations..................................................................................................................50 Quadratic factoring and Solving quadratic equations................................................................................54 Quadratic Equations And Quadratic Formula...............................................................................................56 Quadratic Functions...........................................................................................................................................59 Interpreting nonlinear expressions : Exponential functions ......................................................................64 End Behavior of Polynomial Graph.................................................................................................................69 Transforming Function.......................................................................................................................................73 The Graph of Rational Function.......................................................................................................................76 The Graph of Irrational Function of Transformations on ...........................................................................82 Isolating Quantities.............................................................................................................................................84 Ratios, Rates and Proportions..........................................................................................................................86 Percents.................................................................................................................................................................90 Units.......................................................................................................................................................................93 Problem Solving and Data Analysis section of the SAT Math.........................................101 Scatterplots : Linear and Exponential Model...............................................................................................106 Key Features of Graphs......................................................................................................................................123 Center, spread, and shape of distributions....................................................................................................125 Data collection and conclusions......................................................................................................................132 Geometry, Coordinate geometry and Trigonometry section of the SAT Math..........140 Volume word problems including lengths and areas..................................................................................141 Right triangle word problems...........................................................................................................................147 Right triangle trigonometry................................................................................................................................153 Angles, Arc lengths, Trigonometric functions...............................................................................................157 Circle theorems...................................................................................................................................................160 Circle equation....................................................................................................................................................166 Trigonometric Definitions on Plane and Basic Properties.........................................................................170 Complex numbers...............................................................................................................................................173