抛物线y=(x+4)2﹣5的顶点坐标和开口方向分别是( )
A.(4,﹣5),开口向上 | B.(4,﹣5),开口向下 |
C.(﹣4,﹣5),开口向上 | D.(﹣4,﹣5),开口向下 |
更新时间:2022-01-06 23:02:35
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【知识点】 y=a(x-h)²+k的图象和性质解读
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e39d61b35a2696df1702d165cffebaf.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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