综合运用:
【模型建立】(1)如图
,等腰
中,
,
,直线
经过点
,过点
作
于点
,过点
作
于点
,求证:
.
【模型应用】(2)如图
,已知直线
与
轴交于点
,与
轴交于点
,将直线
绕点
逆时针旋转
至直线
,求直线
的函数表达式;
【模型建立】(1)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/323b786e35c9b762d00f2b2ef74ce1d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c388d0a3f0a8d9fb0b9576d00af225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5c60ab4cdefda079244161bb911a453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172d93e9195e92d7924c0aea3d4c7eaa.png)
【模型应用】(2)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/993ba65e4eee11c93582a5bb796b911e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
更新时间:2024-05-12 10:37:25
|
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解答题-问答题
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适中
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【推荐1】如图,一次函数y=kx+b的图象与反比例函数y=
的图象相交于点A(﹣2,1)、点B(1,n).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/6/7cefbced-9a30-45cc-843e-62870fe65127.png?resizew=240)
(1)求此一次函数和反比例函数的解析式;
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(2)请直接写出满足不等式kx+b﹣
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名校
【推荐2】已知直线y=x+4分别交x轴、y轴于A、B两点,抛物线y=x2+mx﹣4经过点A,和x轴的另一个交点为C.
(1)求抛物线的解析式;
(2)如图1,点D是抛物线上的动点,且在第三象限,求△ABD面积的最大值;
(3)如图2,经过点M(﹣4,1)的直线交抛物线于点P、Q,连接CP、CQ分别交y轴于点E、F,求OE•OF的值.
(1)求抛物线的解析式;
(2)如图1,点D是抛物线上的动点,且在第三象限,求△ABD面积的最大值;
(3)如图2,经过点M(﹣4,1)的直线交抛物线于点P、Q,连接CP、CQ分别交y轴于点E、F,求OE•OF的值.
![](https://img.xkw.com/dksih/QBM/2019/1/24/2125601590689792/2127792108740608/STEM/bdba08a623ab4857abfd3ff5b81712ea.png?resizew=248)
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【推荐1】已知A(8,0)及在第一象限的动点P(x,y),且x+y=10,设△OPA的面积为S
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(3)求S=12时P点坐标;
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【推荐2】某地为改善生态环境,积极开展植树造林,甲、乙两人从近几年的统计数据中有如下发现:
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(1)求y2与x之间的函数关系式?
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解答题-证明题
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适中
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【推荐1】在
中,
是
的角平分线.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/8/a49b2164-5281-4a32-9d55-3eb4d5baf03b.jpg?resizew=261)
(1)如图1,过C作
交
延长线于点E,若F为
的中点,连结
,求证:
;
(2)如图2,M为
的中点,过M作
交
于点N,若
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/8/a49b2164-5281-4a32-9d55-3eb4d5baf03b.jpg?resizew=261)
(1)如图1,过C作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec5d3a183594be47dd6e386d2c9d725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f345b28a81ff3d2c4666ee945a426fa9.png)
(2)如图2,M为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff3c1ea812dbddf9c5752e45e3713a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f186ea827f7becafd1ac4955e22c6812.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dafebaaf13781120dc57c277d0267c0.png)
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【推荐2】如图,AD 是一段斜坡,AB 是水平线,现为了测斜坡上一点 D 的铅直高度(即 垂线段 DB 的长度),小亮在点 D 处立上一竹竿 CD,并保证 CD=AB,CD⊥AD,然后在竿顶 C 处垂下一根细绳(细绳末端挂一重锤,以使细绳与水平线垂直),细绳与斜坡 AD 交于点E,此时他测得 CE=8 m,AE=6 m,求 BD 的长度.
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解答题-作图题
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适中
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【推荐1】如图,以等腰三角形
的底边
为直径的圆与
,
分别交于点D,E.请仅用无刻度直尺按下列要求作图(保留作图痕迹).
平行的直线;
(2)在图2中,作一个以
为对角线的矩形.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)在图2中,作一个以
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解答题-问答题
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【推荐2】如图,
是正方形
的对角线,点
是边
上的一个动点(点
不与点
,
重合),连接
,点
在
的延长线上,且
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/28/51343c73-5c40-4e9b-8a1d-91810a01646c.png?resizew=182)
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的度数;
(2)若
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的长.
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(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adcae9d00980803e5955228d1e217abe.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
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