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2017年1月25日SAT官方每日一题---数学选择.

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  下面是2014年1月25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 the graph of the functionis a line with slope, which of the following could be the equation of?

  (A)

  (B)

  (C)

  (D)

  (E)

  The correct answer is B

  Explanation

  The graphs of all the given functions are lines, and the equations are all in the form. When a linear equation is in the form, the slope of the graph of the equation is, the coficient of. The graph of the functionis a line with slope, so the only choice that could be the equation ofis.

  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:

  A jar contains only red marbles and green marbles. If a marble is selected at random from the jar, the probability that a red marble will be selected is. If there aregreen marbles in the jar, how many red marbles are there in the jar?

  (A)

  (B)

  (C)

  (D)

  (E)

  The correct answer is D

  Explanation

  Choice (D) is correct. Letbe the number of red marbles in the jar.

  The probability of selecting a red marble is equal to the number of red marbles divided by the total number of marbles. Since the probability of selecting a red marble is, it follows that. There aregreen marbles andred marbles, so the previous equation becomes. This simplifies to, or. Therore, the number of red marbles,, is.

  以上就是关于2014年1月25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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