There are some uses, which can make you more proficient in knowledge, but for the exam, you have to practice a lot according to previous years' papers, that is, quadratic function and circle and motion change. To learn math well, you must learn it quickly. You can teach yourself without learning quadratic functions, and so can circles. Quadratic function drawing analysis is the first point. If it is a circle, it is the comparison of the distance and radius from the center of the circle to a straight line. Learning knowledge and taking exams are two different things. Be sure to study the senior high school entrance examination papers in previous years and have a clear aim. I wish you success!

The junior high school teacher taught me six words: careful, skilled and standardized.