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Preface ivÀÌ Ã¥ÀÇ Æ¯Â¡ vÀúÀÚ¼Ò°³ vi The Structure of Digital SAT.........................1 Paper SAT vs New Digital SAT .........................2Paper SAT Math vs New Digital SAT Math.........................4The Math Section Overview : 4 Math Topic Categories .........................4High-level breakdown of each concept.........................5How to get a high score in The Digital SAT math.........................6The Algebra section of the SAT Math.........................9Solving Linear Equations.........................10Interpreting Linear Functions : Slope and Intercepts.........................13Linear equation word problem.........................20Graphing Linear Equations.........................26Linear function word problems.........................30Systems of linear inequalities word problems.........................33Solving systems of linear equations.........................38Passport to Advanced Math section of the SAT Math.........................41Radicals and Rational Exponentials .........................42Operations with irrational expressions.........................47Rational Operation and Equations.........................50Quadratic factoring and Solving quadratic equations.........................54Quadratic Equations And Quadratic Formula.........................56Quadratic Functions.........................59Interpreting nonlinear expressions : Exponential functions .........................64End Behavior of Polynomial Graph.........................69Transforming Function.........................73The Graph of Rational Function.........................76The Graph of Irrational Function of Transformations on .........................82Isolating Quantities.........................84Ratios, Rates and Proportions.........................86Percents.........................90Units.........................93Problem Solving and Data Analysis section of the SAT Math.........................101Scatterplots : Linear and Exponential Model.........................106Key Features of Graphs.........................123Center, spread, and shape of distributions.........................125Data collection and conclusions.........................132Geometry, Coordinate geometry and Trigonometry section of the SAT Math..........140Volume word problems including lengths and areas.........................141Right triangle word problems.........................147Right triangle trigonometry.........................153Angles, Arc lengths, Trigonometric functions.........................157Circle theorems.........................160Circle equation.........................166Trigonometric Definitions on Plane and Basic Properties.........................170Complex numbers.........................173