论文部分内容阅读
运用二次函数解决实际问题中的最大(小)值问题是近几年来各地中考命题的一个热点,解决这类问题的关键是从实际问题中抽象出二次函数的模型,然后再应用二次函数的有关性质去寻找实际问题的最佳答案。请看两个典型的例子。
The problem of using the quadratic function to solve the largest (small) value in practical problems is a hot topic in the secondary school entrance examinations in recent years. The key to solving these problems is to abstract the quadratic function model from the actual problems and then apply the secondary The nature of the function to find the best answer to the actual problem. Please see two typical examples.