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最近几年,函数图象的考查在高考中倍受命题者青睐.主要考查方式有两方面:一是给出过程,通过分析过程而确定函数的图象;一是给出图象,考查学生的“读图”能力.而分段函数图象在表示同一个运动或过程在不同阶段的不同变化情况时,具有形象直观的特点,能深刻揭示过程中的变
In recent years, the examination of function images is highly favored by the proponents in the college entrance examination.The main methods of examination have two aspects: one is to give the process and the image of the function is determined through the analysis process; the other is to give the image and examine the students The ability of “reading graph”, and the segmentation function image has the characteristics of vivid image when it shows the different changes of the same movement or process in different stages, which can profoundly reveal the change in the process