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图象是进行数学交流的重要语言,是研究函数的重要工具,以其为载体构建的数学题称为图象信息题.它与现代社会生活息息相关,涉及生产、生活的方方面面,同时这类问题取材新、立意巧,也有利于考查学生的数学建模能力和解决实际问题能力.下面,仅以2013年中考函数图象信息题为例(应用题为主),进行分类归纳,供参考.一、行走路线问题例1某人匀速跑步到公园,在公园里某处停留了一段时间,再沿原路匀速步行回家,此人离家的距离y
Image is an important language for mathematical communication and an important tool for studying functions, and the mathematics question constructed by it is called image information question, which is closely related to modern social life and involves all aspects of production and life. At the same time, It is also conducive to examining students’ mathematical modeling ability and ability to solve practical problems.According to the example of the image information of the middle school entrance exam in 2013 (the main problem of the application), we can make the classification and induction for reference. First, the walking route Problem Example 1 A person running to a uniform park, parked somewhere in the park for some time, and then walk home along the same road uniform speed, the distance from home y