如图,直线
交x轴于点A,交y轴于点B,C为线段
(端点除外)上一动点,点D与点C关于x轴对称,过点C作x轴的平行线交
的延长线于点F,则线段
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b5062be5cf27ae8089ad0c25d1b7c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b63d2504bd3ecce8c10560b142356f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
23-24八年级上·广东深圳·期末 查看更多[2]
更新时间:2024-01-27 19:49:25
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【推荐1】如图,直线
与x轴交于点B,与y轴交于点C,点
,D为线段
的中点,P为y轴上的一个动点,连接
、
,当
的周长最小时,点P的坐标为( )
![](https://img.xkw.com/dksih/QBM/2022/1/1/2892211425820672/2896956158902272/STEM/c4590645-c6f1-46a0-a535-ea6c5f8cc105.png?resizew=199)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a98e24892abc0eb34d5216d4e89c61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813597f052c8930e12f0a22aeaa3cce1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd4d3653347116b65c45b57223f96e5.png)
![](https://img.xkw.com/dksih/QBM/2022/1/1/2892211425820672/2896956158902272/STEM/c4590645-c6f1-46a0-a535-ea6c5f8cc105.png?resizew=199)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】关于一次函数
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a19f7356ca5ae07039738d21dad801b.png)
A.函数图象与x轴的交点为![]() |
B.当![]() ![]() |
C.点![]() ![]() ![]() ![]() |
D.函数图象经过第二、三、四象限 |
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【推荐1】如图,在
中,点
为
的中点,
的边
过点
,且
,
,
平分
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3767efa8adfb71001ad39df9560cbf6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/333ab24c4935210f4c232cd0c0fae358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060705794ef87cc71dac40c57f27b1d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0268d04b9dea7629af27af9a0285a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f25936291abb6432ed5a710ebf0ea195.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b1fce5acb99c537df69d9d66141305.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/7/8db9a219-99ce-4a70-ad9e-102f7e29c9ea.png?resizew=195)
A.10 | B.8 | C.7 | D.6 |
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【推荐2】如图,OC为∠AOB的角平分线,点P是OC上的一点,PD⊥OA于D,PE⊥OB于E,F为OC上另一点,连接DF,EF,则下列结论:①OD=OE;②DF=FE; ③∠DFO=∠EFO;④S△DFP=S△EFP,正确的个数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/7028bc43-cf5a-4748-b632-9c9d630a537b.png?resizew=154)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/7028bc43-cf5a-4748-b632-9c9d630a537b.png?resizew=154)
A.1个 | B.2个 | C.3个 | D.4个 |
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【推荐1】如图,在平面直角坐标系中,点A,B在反比例函数
的图象上,点C在y轴上,
,
轴,
于点D,若点A的横坐标为5,
,则k值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddf7ff82619dac9de5ee8d97724fda2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d51fa2414dbedc6b24777b28a796c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70734a8e672376bb0bd1522e229f86a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a7e75d7342e6f087370d09181b17a4e.png)
A.3 | B.4 | C.![]() | D.![]() |
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【推荐2】如图,在Rt△ABC中,∠ACB=90°,AC=BC,过点C作CD⊥AB,垂足为D,点E为BC的中点,AE与CD交于点F,若DF的长为
,则AE的长为( )
![](https://img.xkw.com/dksih/QBM/2021/4/7/2694516501069824/2697688936136704/STEM/005884f3-451c-483d-9006-4e5e31fe3859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d74ef32584586ec4857acd0a3f4fe9.png)
![](https://img.xkw.com/dksih/QBM/2021/4/7/2694516501069824/2697688936136704/STEM/005884f3-451c-483d-9006-4e5e31fe3859.png)
A.![]() | B.2![]() | C.![]() | D.2![]() |
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