SAT数学的备考过程中,真题的练习能够帮助我们更好的了解考试内容,对于知识点的把握,解题经验等都有很好的提升,具体的SAT数学考试中的真题内容都有哪些呢?为了让大家更好的练习,下面小编为大家整理了详细的内容,供大家参考!

  The mean number of students per classroom, y, at Central High School can be estimated using the equation y = 0.8636x + 27.227, where x represents the number of years since 2004 and x 10. Which of the following statements is the best interpretation of the number 0.8636 in the context of this problem?

  A. The estimated mean number of students per classroom in 2004

  B. The estimated mean number of students per classroom in 2014

  C. The estimated yearly decrease in the mean number of students per classroom

  D. The estimated yearly increase in the mean number of students per classroom

  Content: Heart of Algebra

  Key: D

  Objective: You must interpret the slope of an equation in relation to the real-world situation it models. Also, when the models are created from data, you must recognize that these models only estimate the independent variable, y, for a given value of x.

  Explanation: Choice D is correct. When an equation is written in the form y = mx + b, the coefficient of the x-term (in this case 0.8636) is the slope. The slope of this linear equation gives the amount that the mean number of students per classroom (represented by y) changes per year (represented by x).

  以上就是关于“新SAT数学题练习题”的内容,希望通过上述内容的学习,大家能够更好的备考SAT数学考试内容,希望大家能够更好的提升数学成绩。


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