【问题情境】
如图1,小明把三角板
(
)放置到矩形
中,使得顶点E、F、G分别落在
、
、
上,你发现线段
与
有什么数量关系?
直接写出结论:______(不用证明).
【变式探究】
如图2,小明把三角板
(
)放置到矩形
中,使得顶点E、F、G分别在
边上,若
,
,求
的长.
【拓展应用】
如图3,小明把三角形
放置到平行四边形
中,使得顶点E、F、G分别落在
边上,若
,
,
,求出
的值.
如图1,小明把三角板
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd82f3c96014272fa70e863b18ea67d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
直接写出结论:______(不用证明).
【变式探究】
如图2,小明把三角板
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd82f3c96014272fa70e863b18ea67d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ae59eba8716379c96c35dcd4bac63f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1a6b99b747b14ab29c30e3ff4838057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beb6823a329628699619a39cde927510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
【拓展应用】
如图3,小明把三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ae59eba8716379c96c35dcd4bac63f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f67f75b7637f0f2b428160004485d682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96bfef1acfd3661e518473fb1ef246fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa421e8c88be98a527d2a6f04981e602.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e49b962754b4797294f22ca3d2e57eec.png)
更新时间:2023-12-06 23:47:35
|
相似题推荐
解答题-问答题
|
较难
(0.4)
名校
【推荐1】如图1,在平面直角坐标系中,
,经过
的直线与反比例函数
在第一象限内的图象交于点D,经过
的直线与反比例函数
在第一象限内的图象交于点E,已知点D的坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/28/dfcf4454-d1b2-4126-8c5e-f1e7ab7d0d26.jpg?resizew=328)
(1)求直线
的解析式及E点的坐标;
(2)若y轴上有一动点F,直线
上有一动点G.当
最小时,求
的周长的最小值;
(3)如图2,若y轴上有一动点Q,直线
上有一动点P,以Q,P,E,D四点为顶点的四边形为平行四边形时,求P点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7af02210816944d54dda5120358e7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098a3e7d1f1890863b7483a98b618119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ce3a6759d65919c758dacfceba94f3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/28/dfcf4454-d1b2-4126-8c5e-f1e7ab7d0d26.jpg?resizew=328)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)若y轴上有一动点F,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a0fb4cde3b5ad25667ec22811c9b42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e5e61804ce550636a0354e0a78a22d.png)
(3)如图2,若y轴上有一动点Q,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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【推荐2】已知一次函数的图像与
轴正半轴交于点
,与
轴负半轴交于点
,
,以线段
为底边作等腰直角
,
,点
在第一象限.
(1)如果
,求一次函数的解析式和点
的坐标;
(2)如果直线
经过点
,且以
、
、
、
为顶点的四边形是平行四边形,请直接写出点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/2/3fc263b0-2630-4196-a9b5-a435e8ff9daa.png?resizew=188)
(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9b5996067a3fc9adcf0ca178dddf03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如果直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b3ba8cc918cbc35312705dd2647bc2.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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解答题-计算题
|
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(0.4)
【推荐1】如图,
,
,
,
,
,
是
上一动点,设
.
(1)用
表示
;
(2)当
为何值时,
;
(3)代数式
是否有最小值,若有请求出最小值,若没有请说明理由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e400f7f216e1df9e118623cbaf090f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f12cacb8b66100d800356b2ba0b0df6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ad4c0ba3a6750537789844d0ec419d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f01c4faacedfe56f5127d6c0cc63cf.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c30f73c718bde8352055a14987fc15.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/28/405e14b1-657a-40ba-b29a-97815ecc9f09.png?resizew=159)
(1)用
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
(2)当
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686171942bd7698035016c732db43b63.png)
(3)代数式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933848f43eb8e5e0e05b7d950ef37296.png)
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解答题-证明题
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较难
(0.4)
【推荐2】射线
射线BN,
,
,以O为圆心,AB为直径画
,点E是
右半圆上的动点,点D是射线AM上的一动点,线段DE的延长线交射线BN于点C.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/033eb799-fff6-42b0-aacb-21e30db9ee5d.png?resizew=341)
(1)当OD平分
时,求证:DC是
的切线;
(2)在(1)的条件下,设
,
,求y关于x的函数解析式,写出自变量的取值范围;
(3)当
,
时,求AD的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d59536d6557e1c1173764aadad269736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d00be47dcb89793f14a2fd10f4c522b.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/033eb799-fff6-42b0-aacb-21e30db9ee5d.png?resizew=341)
(1)当OD平分
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418ebb89d29f4f631b055c911e8d178a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)在(1)的条件下,设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2633a6f46b0847158eebb05c743561aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b299f5cddf9da033ec3a996f42ae54b.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa6bb28e6bd666440c3ca262db9ea7f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d32ad2221530be1dc6f86b9e73a04d.png)
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解题方法
【推荐1】如图,
中,
,
,
.动点
从点
出发,在
边上以
的速度向定点
运动,同时动点
从点
出发,在
边上以
的速度向点
运动,运动时间为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
,连接
.
(1)当
为何值时,
与
相似?
(2)连接
,
,如图1所示,若
,求
的值.
(3)当
为何值时,
是等腰三角形?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa8cee7d2463f6f7d352e8b65f47cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dafddfd80f69337909f6eac0f0dbfd59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432043f79e122f291c47453013042704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e5acdedbab4bba6a4f5defc72c70b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d989a128e30a701dfff5592476a76bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f174662999d14e05608a42dc70c698d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc96cbcfa8d5e19732facffb936bec5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9e41380c8c23cfe53588b16732694bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc96cbcfa8d5e19732facffb936bec5c.png)
![](https://img.xkw.com/dksih/QBM/2021/11/1/2841801022242816/2844002012913664/STEM/55204a1400fe4d2684a38796c1a4f3c1.png?resizew=573)
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【推荐2】如图1是某品牌的纸张打孔机的实物图,图2是从中抽象出的该打孔机处于打孔前状态的侧面示意图,其中打孔机把柄
,
是底座,
与
所成的夹角为36.8°,
点是把柄转轴所在的位咒,且
点到底座
的距离
.
与一根套管相连,
可绕
点转动,此时,
,套管内含打孔针
,打孔针的顶端
触及到
,但与
不相连,
始终与
垂直,且
,
.
(1)打孔针
的针尖
离底座
的距离是多少厘米?
(2)压下把柄
,直到
点与
点重合,如图3,此时,
.
两点重合,把柄
将压下打孔针
并将它锲入放在底座
上的纸张与底座之内,从而完成纸张打孔,问:打孔针
锲入底座
有多少厘米?
(参考数据:
,
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c0eb194ef52fbe987de2554fe825cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abc3847f43648a448ded5f7f1384411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40da5f7514d821e731e138bc72263507.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5518da069f954e0be18aeffe052c1c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae6150e4e7469055b1d0b1aeebaf9d2b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/22/c5fe162c-7d4f-47dd-ae65-efeb1ebfce86.jpg?resizew=448)
(1)打孔针
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(2)压下把柄
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da392a56da2e53d6d0fe249c2c5256a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d802766761d21ec4399413a651a6c9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd845cc4a4e6ad910dc5a3c8f9a6fbe.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐1】如图,D在
延长线上,
与
的平分线
交于点E.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/18/0ea45959-0f21-4aa3-a494-08c39d78bc47.png?resizew=200)
(1)若
,求
的度数.
(2)若
//
且
,求
的值.
(3)若
为锐角,作
交
延长线于点F,当
与
相似时,请求出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb8eca20ce2c918ea4034ea15210c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ed3797a759dca7272c4f8a2434423ff.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/18/0ea45959-0f21-4aa3-a494-08c39d78bc47.png?resizew=200)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d777d15cd733338ecfd0ea63819f62c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b871a762469393cdd22f15aa49ebb8f9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12559e616d4eb39284d8dfbce5801a0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d54d09ef825305de83671448a3dea21.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65b53a2c6c58ded41cd81e6e619c3897.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ea13010e2399194be2a681310543e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea624cb140001a7e9d7567903a29521.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】如图,抛物线
与x轴交于A,B两点,且点B的坐标为
,与y轴交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/2/0d605ff8-ff31-4a29-91c3-67dd189ce972.png?resizew=180)
(1)求该抛物线的解析式;
(2)连接AC,点G是线段AC的中点,将原抛物线向右平移得到新抛物线
,使得点A刚好落在原点O,
的顶点为F.在抛物线
的对称轴上,是否存在一点Q,使得△FGQ为直角三角形?若存在,求出点Q的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e59da5115d0dafea24822245f92c48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae140e4db2c5563e5f902fcbebaac262.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/2/0d605ff8-ff31-4a29-91c3-67dd189ce972.png?resizew=180)
(1)求该抛物线的解析式;
(2)连接AC,点G是线段AC的中点,将原抛物线向右平移得到新抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b4d2174f411d9db6ab7b2aea47818cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b4d2174f411d9db6ab7b2aea47818cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b4d2174f411d9db6ab7b2aea47818cb.png)
您最近一年使用:0次