二次函数的图象既是初中数字数学的重要内容,又是学业考试命题的热点,它考查了学生对函数思想和数形结合思想的把握.为了便于同学们在复习时能抓住重点,掌握解题的技巧.现就各地学业考试中有关二次函数的图象考查特点.精选几例加以归类浅析,希望对同学们有所启发. The image of the quadratic function is not only an important part of junior high school mathematics, but also a hot topic of the academic test proposition, which examines the students’ grasp of the thought of function and the idea of ​​combining mathematical and numerical forms.In order to facilitate students to grasp the key points during the review, Problem solving skills are now around the academic test quadratic function of the image test features selected several cases to classify, I hope the students have some inspiration.