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用统计图解决行程问题,需要明确横轴表示什么,纵轴表示什么,随着横轴上的变化,折线上的点发生了怎样的变化,通过对数据进行分析和判断,再根据行程问题的基本数量关系解决实际问题。【例】甲、乙两车分别从相距600千米的A、B两地同时出发,相向而行,途中两车相遇。关系如下图:请根据图中的数据找出相关条件,解决下列问题:(1)两车几小时相遇?(2)相遇时甲车行了多少千米?【思路点睛】(1)从图中可以看出,两条交叉的线段表示甲、乙两车分别从相距600千米的两地同时出发相向而行的路程,横轴上对应的
Use the chart to solve the travel problem, you need to clear what the horizontal axis, what the vertical axis, with the changes on the horizontal axis, the line point on the point of what happened, through the data analysis and judgment, and then according to the travel problem The basic quantitative relationship to solve practical problems. [Example] A, B two cars from the 600 km apart from the A, B both at the same time, the opposite line, on the way two cars meet. The relationship as shown below: Please find the relevant conditions according to the figure, to solve the following problems: (1) How many hours of two cars met? (2) As can be seen, the two intersecting segments represent that A and B vehicles, respectively, depart from each other at a distance of 600 km at the same time, while the corresponding horizontal axis