一、机考改革，深度剖析新动向 本书开篇即对SAT机考改革进行了全面且周密的剖析，细致对比了纸笔考与机考在考试时长、题目数量、结构布局以及题型考点等方面的异同。此外，**章还系统阐述了自适应模式的运作机制，并对机考中的常见问题进行了全面归纳。这些内容为考生深入理解并顺利适应机考的新特点和新变化提供了有力支持。 二、考点梳理，智慧**实战路 第二章详细梳理了数学部分的整体框架及全部考点。每个考点都精心配置了针对性的样题、答案解析、解题技巧和备考建议。通过系统且全面的学习与练习，考生能够迅速理解并掌握 SAT对考生能力的具体要求，进而提升解题能力与应试水平。 三、专项精练，答案详析助突破 第三章至第六章专注于四大核心考点——代数、高等数学、解决问题和数据分析、几何和三角学——精心设计了专项练习。每个考点均配备了大量习题及详尽的答案解析和干扰项分析。考生可根据自身薄弱环节，有针对性地进行强化训练，牢牢掌握出题模式和解题逻辑。在正式练习之前，建议考生根据个人情况，量身打造学习计划，确保每日都能完成既定数量的习题。不论做题结果正确与否，均请仔细阅读答案解析及干扰项分析，深入钻研答案背后的推理过程。

Table of Contents Chapter1 About the Digital SAT 1 Chapter2 Overview of the SAT Math Section 13 Chapter 3 Algebra 37 Linear equations in one variable Linear equations in two variables Linear functions Systems of two linear equations in two variables Linear inequalities in one or two variables Chapter 4 Advanced Math 83 Equivalent expressions Nonlinear equations in one variable and systems of equations in two variables Nonlinear functions Chapter 5 Problem-Solving and Data Analysis 121 Ratios, rates, proportional relationships, and units Percentages One-variable data: distributions and measures of center and spread Two-variable data: models and scatterplots Probability and conditional probability Inference from sample statistics and margin of error Evaluating statistical claims: observational studies and experiments Chapter 6 Geometry and Trigonometry 165 Area and volume Lines, angles, and triangles Right triangles and trigonometry Circles Chapter 7 Math Test 195 Module 1 Module 2 Answer Key Answers & Explanations