摘要
历届中考的热点之一,就是运用二次函数解决数学问题或实际问题,此类题目经常需要用二次函数表达其中的变量关系,而求出二次函数的解析式是解题的关键。求二次函数解析式的方法有定义法、平移法、三点法、交点法、顶点法、对称法、旋转法、参数法、等量法等。
One of the hot topics in senior high school entrance ex- amination is the use of quadratic function to solve mathematical problems or practical problems,. These problems often need to use quadratic function to express the relationships among the variables, and find out the quadratic function analysis formula, which is the key to solving the problems. This paper mainly in- troduces the common methods of solving the quadratic function analysis formula.
出处
《科教文汇》
2013年第18期133-134,共2页
Journal of Science and Education
关键词
二次函数
解析式
方法
浅议
quadratic function
analysis formula
method
a brief discussion