新GRE数学难吗?GRE考试网推荐新GRE《OG》数学题精选,并附参考答案,让考生们了解GRE数学的题型,以及考试的知识点。祝考生们取得良好成绩!
The figure above shows the graph of a function f, defined by f=|2x|+4
for all numbers x. For which of the following functions g defined for all
numbers x does the graph of g intersect the graph of f ?
A g=x2
B g=x+3
C g=2x 2
D g=2x+3
E g=3x 2
这个题就是问两个函数图象相交的问题,根据观察,要与这个折线相交的直线的斜率满足的条件是要么是正斜率比2大,要么是负斜率比-2小,因此只能选E了。
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