二次函数y=ax2+bx+c图象上部分点的横坐标x与纵坐标y的对应值如表格所示,那么它的图象与x轴的另一个交点坐标是_____ .
![](https://img.xkw.com/dksih/QBM/2019/3/1/2150934571581440/2152045164388353/STEM/c4808f4c9ede4e5792c0ad971b584501.png?resizew=381)
更新时间:2019-03-03 11:11:30
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【知识点】 求抛物线与x轴的交点坐标解读
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【推荐1】若抛物线y=x2+bx+c与x轴只有一个交点,且经过点A(1,n)和B(3,n),则n=_____ .
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【推荐2】如图,抛物线
与
轴交于
两点(点
在
的左边),与
轴交于点
,点
为此抛物线上的一动点(点
在第一象限),连接
,则四边形
面积的最大值为______ .
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