Points (-2, x)and(y, 2), not shown in the figure above, are in quadrants Ⅲ and Ⅱ, respectively, in which quadrant is point(x, y)

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问题 Points (-2, x)and(y, 2), not shown in the figure above, are in quadrants Ⅲ and Ⅱ, respectively, in which quadrant is point(x, y)?

选项 A、Ⅰ
B、Ⅱ
C、Ⅲ
D、Ⅳ
E、It cannot be determined from the information given.

答案C

解析 (-2,x)在第三象限,那么x就绝对不可能为0,x必然小于0;同样道理,(y,2)在第二象限,那么y必然小于0,所以(x,y)一定在第三象限。正确答案为C。
坐标系中任意两点间的距离:
P2P1=
连接任意两点的线段的中点坐标:
(xm,ym)=
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本试题收录于: GMAT QUANTITATIVE题库GMAT分类
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