一次函数应用问题是初中数学的重点内容,能较好地考察学生的阅读理解能力与日常生活体验,同时又考察学生获取信息后的抽象概括能力、建模能力和判断决策能力,强化学生的“用”数学意识,也符合新课程标准提出的“运用数学的思维方式去观察社会,解决日常生活中和其他学科生活中的问题,增强应用数 The application of the function of primary function is the key content of junior middle school mathematics. It can better examine students’ reading comprehension ability and daily life experience. At the same time, it also inspects the students’ abstract abstract ability, modeling ability, and decision-making ability after obtaining information, and strengthens students’ ”Using the mathematics consciousness, also in line with the new curriculum standards " use of mathematical thinking to observe the society, to solve the problems in the daily life and other subjects of life, enhance the number of applications