一道SAT数学题及解法.

　　下面是一道SAT数学题及其解法，是关于代数方面的。SAT数学考试的难度对于中国的考生来说并不是很大，所以大家在备考SAT数学题的时候，要更加认真对待，以便能在SAT数学考试中取得好成绩，为自己的申请做好准备。

　　Which of the following inequalities is graphed below?

　　(A)y > –2x – 2

　　(B)y ≥ –2x – 2

　　(C)y < –2x – 2

　　(D)y > x – 2

　　(D)y > – x – 2

　　Correct Choice：A

　　Explanation：

　　The slope of the line pictured is –12⁄6 = –2. The y-intercept of the line pictured is –2. So the equation of the line pictured is y = –2x – 2. This leaves three choices. The line in the picture is dotted; this means that the inequality is either < or >, not ≤ or ≥. Now we have two choices lt.

　　Because the region to the right and above is shaded, > is the correct inequality, but just to make sure, plug in a point or two. In this case, try the origin, (0,0). It is in the shaded region, and must therore satisfy the inequality. Which inequality does is satisfy? It satisfies y > –2x – 2, so this is the correct choice.

　　以上就是关于这道SAT数学数学题和解法的全部信息，对于题目和后面所附的答案都是以英语的形式进行的，所以大家在备考SAT数学题的时候，不仅仅要关注数学本身，还要理解表达所用的英语的真正含义，只有这样，大家才能真正理解SAT数学题的含义，才能真正拿到高分。

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