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=2x2 D g=2x+3 E g=3x2 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。 |