如图,直线y=
x+4与x轴、y轴分别交于A、B两点,点C在OB上,若将△ABC沿AC折叠,使点B恰好落在x轴上的点D处,则:
![](https://img.xkw.com/dksih/QBM/2016/9/23/1574241203396608/1574241209925632/STEM/c79d1da9ca7447f69c23c365c7aca09e.png?resizew=176)
(1)线段AB的长是_____ .
(2)点C的坐标是_____ .
![](https://img.xkw.com/dksih/QBM/2016/9/23/1574241203396608/1574241209925632/STEM/557eddf071fb478ebb26200bc02a1922.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2016/9/23/1574241203396608/1574241209925632/STEM/c79d1da9ca7447f69c23c365c7aca09e.png?resizew=176)
(1)线段AB的长是
(2)点C的坐标是
更新时间:2016-12-06 13:44:51
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【知识点】 几何问题(一次函数的实际应用)解读
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【推荐2】在平面直角坐标系中,点A的坐标为
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