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函数图表信息题是通过图象、图形及表格等形式给出信息的一种题型.这类题立意新颖、构思精巧、解法灵活,突出对考生的阅读理解能力、获取信息与处理能力的考查.故成为了近年高考的亮点题型.一图象信息题函数图象能反映函数定义域、值域、单调性、奇偶性(对称性)、特殊点(交点、边界点、最值点)等性态,在解答时应从这些方面入手加以分析,充分挖掘图象信息,并注意与方程、不等式等联合起来正确求解.
The function graph information question is a question type that gives information through the form of images, graphs, tables, etc. This type of question is novel in concept, exquisite in concept, flexible in solution, and highlights the candidate’s reading comprehension ability, access to information, and processing ability. Therefore, it has become a bright spot in college entrance examination in recent years. An image information function image can reflect function definition domain, value domain, monotonicity, parity (symmetry), special point (intersection point, boundary point, maximum point) Equivalent behavior, should be analyzed from these aspects in the answer, fully mining image information, and pay attention to the correct solution with the equations, inequalities and other joint.