在平面直角坐标系
中,抛物线
与
轴交于点
,与
轴交于
、
两点
点
在点
的左侧
,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eddc3e1c103caf282d8af5dcbd9401df.png)
,
,
.
(2)线段
上有一动点
,连接
,当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f0770c80c0a4d577201726f0ca83e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
的值最小时,请直接写出此时点
的坐标和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f0770c80c0a4d577201726f0ca83e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
的最小值.
(3)如图2,点
为直线
上方抛物线上一点,连接
、
交于点
,连接
,记
的面积为
,
的面积为
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b235f34d07126ae1a2157027cf7be0ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.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/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eddc3e1c103caf282d8af5dcbd9401df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1158b401ca717391b6474d457721a6fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fda64cde0d402a603c22f24fa8eba2d.png)
(2)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62e8aadaadebf1454fde21a390ebdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcfaca9396f85c0137b534903321fcbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f0770c80c0a4d577201726f0ca83e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30513ea48bc1ef3ae78adac83d894f14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f0770c80c0a4d577201726f0ca83e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30513ea48bc1ef3ae78adac83d894f14.png)
(3)如图2,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c8029d595ad6792877ce32532869e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa485cf3776f36aaf4abaadaf30fb85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
2023·广东茂名·一模 查看更多[7]
2023年广东省茂名市祥和中学中考一模数学试卷江西省上饶市信州区2022~2023学年九年级下学期第二次月考数学试卷2023年广东省中考二模数学试卷江西省上饶市信州区2022-2023学年九年级下学期月考数学试卷2023年山东省济南市槐荫区中考三模数学试题(已下线)2023年佛山等市一模(二次函数综合2)(已下线)2023年中山等市二模(二次函数综合)
更新时间:2023-03-21 22:56:52
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相似题推荐
解答题-问答题
|
较难
(0.4)
【推荐1】综合与探究
如图,抛物线
经过点
,
两点,与
轴交于点
,点
是抛物线的顶点,点
是抛物线上一个动点,设点
的横坐标为
,连接
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/4/28/2968135722246144/2974818726879232/STEM/21abba17-1382-421e-994f-a537fb14e940.png?resizew=483)
(1)分别求出抛物线与直线
的函数表达式;
(2)当
时,求
的值;
(3)若点
是
轴上一动点,点
是抛物线上一动点,试判断是否存在这样的点
,使得以点
、
、
、
为顶点的四边形是平行四边形?若存在,请直接写出点
的坐标;若不存在,请说明理由.
如图,抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b77527caa01efcfc28dadcc959af94e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd99c5000629d7f49499d666e68f40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b00c7d98aa59fe7e9b6001181ba542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d8ec206d35a9ad7fe209ab114c2c5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/2022/4/28/2968135722246144/2974818726879232/STEM/21abba17-1382-421e-994f-a537fb14e940.png?resizew=483)
(1)分别求出抛物线与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6d7d1ce11b2006c8fce3464a94fac94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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解答题-问答题
|
较难
(0.4)
【推荐2】如图,在平面直角坐标系中,抛物线
交x轴于
,B两点,交y轴于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/3/d08d9fb4-963a-4fde-aebd-4eac008d73bf.png?resizew=380)
(1)求抛物线的表达式;
(2)点P是直线
上方抛物线上的一动点,过点P作y轴的平行线交
于点E,过点P作
的平行线交x轴于点F,求
的最大值及此时点P的坐标;
(3)将该抛物线y沿射线
方向平移
个单位长度得到新抛物线
,点G是新抛物线
的顶点,点M为新抛物线
的对称轴上一点,在平面内确定一点N,使得以点C,G,M,N为顶点的四边形是以
为边的菱形,写出所有符合条件的点N的坐标,并写出求解点N的坐标的其中一种情况的过程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c9800e4b992044d16681e77ff6563c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0d256036d52b784b8c68bfc8db69d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d713705824d6e9a0c4d962348919fa6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/3/d08d9fb4-963a-4fde-aebd-4eac008d73bf.png?resizew=380)
(1)求抛物线的表达式;
(2)点P是直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ebedbaa20407c3c5789677f97693285.png)
(3)将该抛物线y沿射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67c015d99f2677951bdcd0447240ef93.png)
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解答题-证明题
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较难
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名校
【推荐1】问题探究:如图1,若
内一点P满足
,则点P是
的智慧点,
是智慧角.
(1)如图2,点P为等边三角形
的智慧点,则智慧角的度数是________;线段
、
、
的数量关系是________;
(2)如图3,点 P为等腰直角三角形
(其中
)的智慧点,且
.
①请判断
与
是否相似,如果相似给出证明并说明
与
的数量关系;
②若
,
的面积为
,求m的值和
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa593f2444894b02e8d67c547087dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780d8fd6c6c1deeeb45e15f639719e02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/22/d2779190-bd8f-49ea-8172-db8d30280fb9.png?resizew=469)
(1)如图2,点P为等边三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
(2)如图3,点 P为等腰直角三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa2da622fcdc28ee85c08c5b0a4e3af.png)
①请判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bbd4869dbffe2c1d53ab6b2494de547.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533a7b702ada1dd80123e4041271d521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
您最近一年使用:0次
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【推荐2】如图1,在正方形
中,点E 是边
上一点,过点 E 向右作
且
,过点 N 作射线
的垂线,垂足为 H.![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61508a6c9737cc35e0dba25cedc31df2.png)
(2)如图2,连接
和
与
相交于点M,求证: ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20db791e73f2f4c9f593880cfe8b6961.png)
(3)如图3,点F 是边
上一动点,连接
,若正方形的边长为4,
求
周长的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0d6118a420fa959d43cb5fbfa343b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed0364099d9ce45fcc1d369615964ede.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61508a6c9737cc35e0dba25cedc31df2.png)
(2)如图2,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4bc04754be6bf9591a81d347ced7dd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4c865445dda4a59b6d5cb18fd74404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20db791e73f2f4c9f593880cfe8b6961.png)
(3)如图3,点F 是边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2864ea3bd4ff616f6f14ae73b343f9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf1c1723bb3e8f479050a7e8d95e809d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2495b77f64c4106112eb1709f99f43cd.png)
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真题
解题方法
【推荐1】如图1和图2,在
中,
,
,
.点
在
边上,点
,
分别在
,
上,且
.点
从点
出发沿折线
匀速移动,到达点
时停止;而点
在
边上随
移动,且始终保持
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/8e2bb01a-6f76-4bfc-aa7f-6bc5b3368873.png?resizew=553)
(1)当点
在
上时,求点
与点
的最短距离;
(2)若点
在
上,且
将
的面积分成上下4:5两部分时,求
的长;
(3)设点
移动的路程为
,当
及
时,分别求点
到直线
的距离(用含
的式子表示);
(4)在点
处设计并安装一扫描器,按定角
扫描
区域(含边界),扫描器随点
从
到
再到
共用时36秒.若
,请直接 写出点
被扫描到的总时长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bade5ba7a4c3354396f4c5e9501b6ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d04eea37e3e0386635f6a557acd2bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31831645e3e44f15226f4bae820916b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23230b2f8bc0a86b5e997131079b9523.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/8e2bb01a-6f76-4bfc-aa7f-6bc5b3368873.png?resizew=553)
(1)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438f34bc8b04e8c494b91306ac6fe352.png)
(3)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/836d745b71ec18b1135e8bbf6990bffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/482076a34965dbc6938e3f500a9de2dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(4)在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5d9f2bee4f93e23c07e0aaeecf02f43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecc3919b5000f9af77ddb77a62bee9c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a4a38d15cfa24625d130ce28da478bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
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解答题-作图题
|
较难
(0.4)
【推荐2】在
的网格中建立如图的平面直角坐标系,四边形
的顶点坐标分别为
,
,
,
.仅用无刻度的直尺在给定网格中按下列步骤完成画图,并回答问题:
(1)在图1将线段
绕点C逆时针旋转
,画出对应线段
;
(2)在图1在边
上画点E,使
(保留画图过程的痕迹);
(3)在图1连接
,画点E关于直线
的对称点F.
(4)如图2,点M是
与竖网格线的交点,在
上找一点N,使
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/457500c8671529bb71714b31028e88d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1a9821a00b71f6b7d7a76d91b3f810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e2518e7b8b5d030370382bd0bd8bff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288153cec163ec93e0ca05149725313c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/457f4f4c86bcc515863591461f062815.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/8/497d9b59-a930-43c2-b2b4-300e267ffb76.png?resizew=455)
(1)在图1将线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)在图1在边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ede03ee5498fe3e3cfd9f9388c5ba6.png)
(3)在图1连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(4)如图2,点M是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a074b2890649ea3ca1868aa1c83c120.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
真题
【推荐1】如图,在平面直角坐标系中,四边形ABCD是以AB为直径的⊙M的内接四边形,点A,B在x轴上,△MBC是边长为2的等边三角形,过点M作直线l与x轴垂直,交⊙M于点E,垂足为点M,且点D平分
.
![](https://img.xkw.com/dksih/QBM/2016/8/22/1574231213522944/1574231220150272/STEM/fbcfc51ed2bc4404a9a4b41fffb6933c.png?resizew=207)
(1)求过A,B,E三点的抛物线的解析式;
(2)求证:四边形AMCD是菱形;
(3)请问在抛物线上是否存在一点P,使得△ABP的面积等于定值5?若存在,请求出所有的点P的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://img.xkw.com/dksih/QBM/2016/8/22/1574231213522944/1574231220150272/STEM/fbcfc51ed2bc4404a9a4b41fffb6933c.png?resizew=207)
(1)求过A,B,E三点的抛物线的解析式;
(2)求证:四边形AMCD是菱形;
(3)请问在抛物线上是否存在一点P,使得△ABP的面积等于定值5?若存在,请求出所有的点P的坐标;若不存在,请说明理由.
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】如图:已知关于x的二次函数y=x2+bx+c的图像与x轴交于点A(1,0)和点B,与y轴交于点C(0,3).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/2/f9038537-7012-4b16-abee-10377f7b3b3d.png?resizew=138)
(1)求二次函数的解析式;
(2)在抛物线的对称轴上是否存在一点P,使△PBC为等腰三角形,若存在,请求出点P的坐标;
(3)有一个点M在线段CB上运动,作MN⊥x轴交抛物线于点N,问当M、N点位于何处时,△BCN的面积最大,求最大面积.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/2/f9038537-7012-4b16-abee-10377f7b3b3d.png?resizew=138)
(1)求二次函数的解析式;
(2)在抛物线的对称轴上是否存在一点P,使△PBC为等腰三角形,若存在,请求出点P的坐标;
(3)有一个点M在线段CB上运动,作MN⊥x轴交抛物线于点N,问当M、N点位于何处时,△BCN的面积最大,求最大面积.
您最近一年使用:0次