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xkhkxhkhkkxkxkkqkxkbeknu嘎嘎嘎嘎敏感

来源：学生作业帮 编辑：作业帮 分类：数学作业 时间：2024/11/06 04:03:05
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解题思路： 首先建立直角坐标系，设抛物线为y=ax^2，把点（2，-2）代入求出解析式可解．
解题过程：
附件

最终答案：略
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