如图,已知直线
与抛物线
交于点
,且点
在
轴上,
是
轴上一点,连接
.
的值;
(2)当
取得最小值时,求点
的坐标;
(3)若直线
交直线
于点
(点
在线段
上,不与端点重合),交抛物线于点
,连接
.设
,求
关于
的函数表达式,并求出
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b775e4e52620e32f713a0326776c842b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a0d44326c214c7a5ecc3068a29ec96f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a8a9a7a4899b351ad4c4d33bbbc425.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a890c1fa5471482455670404d752a059.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13ec9a812274ad0839f20ba17348687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d71f015144ffaf1faec94a259b4a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2197336155600727264a75c776493dbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/595044a7750ab4f84519041979c3d780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/595044a7750ab4f84519041979c3d780.png)
2024·山东淄博·一模 查看更多[2]
2024年山东省淄博市高青县 九年级一模考试数学模拟试题(已下线)热点09 图形变化(平移、旋转、对称)(9大题型+满分技巧+限时分层检测)-2024年中考数学【热点·重点·难点】专练(广东专用)
更新时间:2024-05-06 22:41:11
|
相似题推荐
解答题-问答题
|
适中
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【推荐1】如图,正方形
的边长为8cm,动点E从B点出发,在正方形的边上由
运动,设运动的时间为
,
的面积为
,S与t的函数图象如图所示,请回答下列问题:
(1)点E在
上运动时间为
,在
上运动的速度为
,
的面积S的最大值为
;
(2)求点E在
上运动时S与t的函数解析式;
(3)当t为何值时,
的面积为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd23cf0ee5cd9a31bd9923c03e2b159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41fb80b591b497d8d7a6d8592160de44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2657e02314469ad2b13d31dce41b4343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab9091bc1886a3fd3d17160b2d41ded.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/9/98d552b0-2fd9-4028-acb4-909a902aa05a.png?resizew=326)
(1)点E在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d65502a7ea4d1ce6d6d8c720845c73e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1dce4a03cf2c9a68b2399d4339a035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2657e02314469ad2b13d31dce41b4343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ce13774b09ff2edddaf21a072cf60a.png)
(2)求点E在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
(3)当t为何值时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2657e02314469ad2b13d31dce41b4343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce019005b5243d67ed1a996d4e752a31.png)
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【推荐2】一次函数y=kx+b的图象与反比例函数y=
的图象相交于A(﹣1,m),B(n,﹣1)两点.
![](https://img.xkw.com/dksih/QBM/2019/9/28/2300396147294208/2303369924108288/STEM/adc350fdccff40869a1c9b2957a54c9f.png?resizew=209)
(1)求出这个一次函数的表达式.
(2)求△OAB的面积.
(3)直接写出使一次函数值大于反比例函数值的x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92f1f850906b3390f82b9ddfd1b08216.png)
![](https://img.xkw.com/dksih/QBM/2019/9/28/2300396147294208/2303369924108288/STEM/adc350fdccff40869a1c9b2957a54c9f.png?resizew=209)
(1)求出这个一次函数的表达式.
(2)求△OAB的面积.
(3)直接写出使一次函数值大于反比例函数值的x的取值范围.
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解答题-作图题
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【推荐1】如图,在平面直角坐标系中,点
的坐标是
.试寻找一些点,使他们满足“到点
与到
轴的距离相等”.
小明在探究过程中首先想到了
的中点
满足条件,点
到点
和
轴的距离都是
.接着,小明过
轴上一点
作
轴的垂线
.他认为在
上应该有一个点
到点
与到
轴的距离相等.
![](https://img.xkw.com/dksih/QBM/2021/1/21/2641004397084672/2669765709160448/STEM/439961ee-bd6a-4d32-818b-84f2a532eda8.png)
(1)请你用尺规作图找出点
(不写画法,保留作图痕迹)并求出点
的坐标;
(2)小明用同样的方法又找出了一些符合条件的点,并把这些点用平滑的曲线连接起来他发现这些点在一条对称轴为
轴的抛物线上.请你根据以上探究和发现,求出这条抛物线的解析式;
(3)请直接写出平面内到点
和直线
距离相等的点所在抛物线的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
小明在探究过程中首先想到了
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ba5cbb31299d683ac6c7dd795db85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/2021/1/21/2641004397084672/2669765709160448/STEM/439961ee-bd6a-4d32-818b-84f2a532eda8.png)
(1)请你用尺规作图找出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(2)小明用同样的方法又找出了一些符合条件的点,并把这些点用平滑的曲线连接起来他发现这些点在一条对称轴为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(3)请直接写出平面内到点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd24f3c4bc9f9a75d4b28630bb630d2b.png)
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解答题-作图题
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【推荐2】如图,点
在抛物线C:
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/13/69ebd17d-b936-4945-ab4b-c23fe4382bfa.png?resizew=127)
(1)直接写出抛物线C的解析式____________,顶点Q的坐标:__________.
(2)点
在抛物线C:
上,且在抛物线C的对称轴的右侧,求a的值;
(3)在坐标平面内放置一透明胶片,并在胶片上描画出点P及C的一段,分别记为
,平移该胶片,使
所在抛物线对应的解析式恰为
,求点
移动的最短路程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0d3b2998d9be4ec10e78ac4ecac58e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af42281b2bce6e277bfa1b852f9818bb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/13/69ebd17d-b936-4945-ab4b-c23fe4382bfa.png?resizew=127)
(1)直接写出抛物线C的解析式____________,顶点Q的坐标:__________.
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8547b084c872ff992aaff440473e326d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af42281b2bce6e277bfa1b852f9818bb.png)
(3)在坐标平面内放置一透明胶片,并在胶片上描画出点P及C的一段,分别记为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bf8cae936d2a0daf860e3be0d73e673.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c6ad41c132dfbea5264661e637691e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
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【推荐1】如图,抛物线L:
与x轴交于点
,
两点,与y轴交于点C,直线l经过点B和点C,点P的坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/10/caacea7e-c919-45ae-85e2-08239e092313.png?resizew=213)
(1)求抛物线L和直线l的解析式;
(2)当点P在L上时,求m的值;
(3)过点P作y轴的平行线,分别与直线l、抛物线L交于点M、N.
①当线段
,求m的值;
②若P,M,N三点不重合,当其中两点关于第三点对称时,直接 写出m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358e2987096a67189bcc2a642da39524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0929421a6188c3122442866b0b85a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ef03f452410ab19c6246567c427178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bde5a2a3028274db80507b57048948a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/10/caacea7e-c919-45ae-85e2-08239e092313.png?resizew=213)
(1)求抛物线L和直线l的解析式;
(2)当点P在L上时,求m的值;
(3)过点P作y轴的平行线,分别与直线l、抛物线L交于点M、N.
①当线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b286c1c76c189d1a99cae6b53ecd19e8.png)
②若P,M,N三点不重合,当其中两点关于第三点对称时,
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【推荐2】如图,抛物线
与
轴交于A,B两点(点A在点B的左侧),与
轴交于点
,连接
.
所在直线的函数表达式.
(2)
是线段
上方抛物线上一动点,过点
作
轴于点
,交
于点
.当
时,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02955b33a997543f4ea569f2cfa46c59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae95e96ce568efee50145f8d017353df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c87c1712f08a5b2fc34bd5ca39cfd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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【推荐1】如图,在所给正方形网格(小正方形的边长都是
)图中完成下列各题.
(1)直接写出
的面积: ;
(2)画出格点
关于直线
对称的图形
;
(3)在
上画出点
,使得
的值最小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/29/722b34b9-934e-4d4d-b72d-d77cbbb67b5b.png?resizew=198)
(1)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)画出格点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13ec9a812274ad0839f20ba17348687.png)
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【推荐2】如图,一次函数
的图象与反比例函数
的图象交于点
,与x轴交于点A,点C在反比例函数
的图象上的一点,
轴,垂足为D,
与
交于点E,
.
(1)求a,k的值;
(2)若点P为x轴上的一点,求当
最小时,点P的坐标;
(3)F是平面内一点,是否存在点F使得以A、B、C、F为顶点的四边形是平行四边形?若存在,请直接写出所有符合条件的点F的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e6e15daf7b14dbff32c390f4984dcfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9212e728b36c078188606c9d429389d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70b63fa1f475dbdad6795a1a364eb7ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9212e728b36c078188606c9d429389d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2634263d383b0487281fdcf6fe3cc625.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/7664e93002bab90b025734bf58143cde.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/3/74352d17-64c8-4a04-af1d-aa427cec4ad7.png?resizew=119)
(1)求a,k的值;
(2)若点P为x轴上的一点,求当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d1d99eab930cef884e01b97d4d56f1.png)
(3)F是平面内一点,是否存在点F使得以A、B、C、F为顶点的四边形是平行四边形?若存在,请直接写出所有符合条件的点F的坐标;若不存在,请说明理由.
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