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2017年1月19日SAT官方每日一题---数学选择.

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  下面是2014年1月19日的SAT官方每日一题的内容,是关于数学方面的,题型是选择。SAT官方每日一题是collegeboard每天都会发布的题目,关于SAT考试的三个部分的各个题型。大家和澳际小编一起来看一下这个SAT官方每日一题吧。

  SAT官方每日一题之数学---选择:

  Mathematics > Standard Multiple Choice

  Read the following SAT test question and then click on a button to select your answer.

  If, which of the following must be true?

  (A)

  (B)

  (C)

  (D)

  (E)

  The correct answer is C

  Explanation

  Squaring both sides of the equationgives the equation. Subtractingfrom both sides now gives, or.

  下面为大家提供一些和这些SAT官方每日一题相似的题目,供大家练习:

  In the-plane, the graph of the line with equationintersects the graph of the quadratic functionin exactly one point. What is the value of?

  (A)

  (B)

  (C)

  (D)

  (E)

  The correct answer is B

  Explanation

  The graph in the-plane of the quadratic functionis a parabola. If the graph of the line with equationintersects the graph of this parabola in exactly one point, that point must be the vertex of the parabola, and the-coordinate of the point must be. The graph ofintersects the-axis atand, so the-coordinate of the vertex of the parabola is halfway betweenandon the-axis at. Thus the-coordinate of the vertex is. Therore, if the graph of the line with equationintersects the graph of the quadratic functionin exactly one point, the value ofmust be.

  以上就是关于2014年1月19日SAT官方每日一题中数学部分的详细内容,包括了题目和选项以及答案,后面附有一道相关的练习题。大家可以在备考SAT的过程中关注SAT每日一题的内容,这样就可以更好有不间断的练习,也就能在日积月累的过程中得到提高。

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