已知二次函数
(
是常数,
).
(1)若
,求该函数图象顶点坐标;
(2)若该二次函数图象经过
三个点中的一个点,求该二次函数的表达式;
(3)若
,当
时,
的最大值记为
,最小值记为
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd59dfa78438d38619b353b7881c349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e9222ffc26c0e6bfbf252ab5d8a520.png)
(2)若该二次函数图象经过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e36c73dac0e23b68d46aa28892b628f0.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1d0169d2809aacb34cf9d70165a3cdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ac8ebedafa300c895540c5e5dda755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd59dfa78438d38619b353b7881c349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bb29b832f791c1a543a520a767c1094.png)
更新时间:2024-04-08 21:16:20
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【推荐1】已知抛物线
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【推荐2】已知二次函数
(
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(Ⅲ)当
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fd07a9b818f1c1efdd873ffefa746c0.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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【推荐1】已知二次函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8352b2e643a7ce605334f1b0e572bfb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b8c639c851e0044ee22020324c5570.png)
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(1)若点
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(2)若点
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd198109833e02857b03326efc194f7e.png)
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解答题-问答题
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适中
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【推荐2】如图,抛物线
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/71cba979-3a89-49f5-96a9-7b0d2cb1119b.png?resizew=165)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b027ed57b9c6f24e27ec0ae282c76efa.png)
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