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chinese
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mathematics
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algebra
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graphing-quadratics-vertex-...
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title
localeTitle
Graphing Quadratics Vertex Form
绘制二次曲面顶点形式
绘制二次曲面顶点形式
抛物线方程的顶点形式:
点
(
h
,
k
)
是顶点。当a为正时
,
抛物线向上打开。
当a为负时
,
抛物线向下打开。
当| a | <1抛物线垂直压缩。
当| a | > 1抛物线变窄。