下面是2012年9月9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.

　　A group of workers can harvest all the grapes fromsquare meters of a vineyard inminute. At this rate, how many minutes will the group need to harvest all the grapes fromsquare meters of this vineyard?

　　Answer Choices

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　The correct answer is A

　　Explanation

　　Sincesquare meters istimessquare meters,times as much time is needed to harvest the grapes from thesquare meters of vineyard.　minute, which equalsminutes.

　　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：

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

　　The function f is graphed in the x y-plane above. If the function g is dined by function g of x = function f of x + 4, for how many values of x between negative 5 and 15 does function g of x equal 0?

　　(A) None

　　(B) One

　　(C) Two

　　(D) Three

　　(E) More than three

　　The correct answer is C

　　Explanation

　　The graph of the function g is the same as the graph of the function f translated up 4 units. The function f intersects the x-axis three times, but if the graph is shifted up 4 units, then the graph will intersect the x-axis only twice. Therore, function g of x is equal to 0 for exactly two values of x between negative 5 and 15.

　　以上就是关于2012年9月9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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