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近年来的中考题中,有许多涉及到一次函数图象的应用题,它关注社会改革,接近现实生活,解这类题需根据实际问题所呈现出来的图象信息,通过分析、处理,进而获取解题信息.这类题主要考查识别图象,处理信息、获取知识以及解决问题的能力.现举几例说明. 例1“十一黄金周”的某一天,小明全家上午8时自驾小汽车从家里出发,到距离180千米的某著名旅游景点游玩,该小汽车离家的距离S(千米)与时间t(时)的关系可以用图
In recent years, there have been a number of questions concerning the use of functional images in the mid-term examination questions. They focus on social reforms and are close to real life. Solutions to such questions require image information based on actual problems to be analyzed and processed. Obtain problem-solving information. Such questions mainly examine the ability to identify images, process information, acquire knowledge, and solve problems. Here are a few examples. Example 1 “One Golden Week ” one day, Xiaoming’s family at 8 a.m. A self-driving car starts from home and travels to a famous tourist attraction that is 180 kilometers away. The relationship between the car’s distance from home (km) and time t (hours) can be used as a map.