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一、考点分析函数的定义、解析式及自变量的取值范围、函数图象与性质都是中考的考点,其题型以填空题、选择题为主,解答题一般是综合题,主要以直线与直线、直线与坐标轴围成的几何图形的面积,用待定系数法表示一次函数解析式等来命题,一次函数与一次方程(组)及一元一次不等式的综合是中考长久不衰的热门考点.反比例函数主要以求函数解析式和结合图象性质解决有关问题为主,会根据函数的解析式画出函数的图象,以及会根据反比例函数的图象确定其解析式,而且在考查函
First, the test center analysis of the definition of function, analytic variables and the range of values, the function of the image and the nature of the test centers are in the test questions to fill in the blank, multiple choice-based answer questions are generally comprehensive questions, mainly Linear and linear, straight line and coordinate axis surrounded by the geometry of the area, using the undetermined coefficient method that the first-order function analytic formula to proposition, a function and a equation (group) and a unified inequality is the entrance examination for a long time unpopular Test points. Inverse function mainly in order to find the function of the analytic expression and the nature of the image to solve the problem-based, will be based on the analytical function of the function to draw the image, and will be based on the inverse proportion function of the image to determine its analytical formula, letter