2017年11月5日SAT官方每日一题---数学选择.

2017-08-04 作者： 286阅读

　　下面是2012年11月5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。下面我们就一起来看一下这个SAT官方每日一题吧。

　　SAT官方每日一题之数学---选择：

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　　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 functionin the-plane contains the points,, and, which of the following CANNOT be true?

　　(A) The graph ofhas a maximum value.

　　(B)for all pointson the graph of.

　　(D) The graph ofis a line.

　　(E) The graph ofis a parabola.

　　The correct answer is D

　　Explanation

　　If the graph of the function, which contains the points,, and, were a line, then the slope of the segment connecting the pointsandwould be the same as the slope of the segment connecting the pointsand. However, the slope of the segment connecting the pointsandis, and the slope of the segment connecting the pointsandis. Therore, the graph ofcannot be a line.

　　The statements in the other four options could be true. For example, if the equation ofwere, then the graph ofwould contain the points,, and. The graph ofwould be a parabola symmetric with respect to the line with equation. The maximum value ofwould occur at the point, andwould be true for all pointson the graph of.

　　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：

　　All numbers divisible by both and are also divisible by which of the following?

　　Answer Choices

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　The correct answer is A

　　Explanation

　　All numbers divisible by both and are the multiples of and . Since and have no prime factor in common , then the least common multiple of and is equal to their product, namely . Every other multiple of and is divisible by . Thus, if is divisible by a number then all the multiples of and are divisible by that number. Therore, it is enough to check by which number in the given options is divisible. Only dividesand none of the other do. The answer must be

　　以上就是关于2012年11月5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。