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数形结合是中学数学的主要数学思想之一,历年高考试题都有关于这方面的考查,而且要求愈来愈高,因此,笔者就97年高考数学第24题(Ⅰ),用数形结合的思想,从不同侧面窥视此题。试题:设二次函数
The combination of number and shape is one of the main mathematics ideas of middle school mathematics. The examination questions in previous years have all been examined in this regard, and the demands are getting higher and higher. Therefore, the author has used mathematics to combine mathematics with mathematics in the 97th exam (I) of the 97th college entrance examination. The idea of peeking through this issue from different sides. Question: Set up a quadratic function