如图1,经过点
的直线
与y轴交于点B,与直线
交于点C,点C的横坐标为
,P是直线
上的一个动点(点P与A,B不重合),过点P作y轴的平行线,分别交直线
和x轴于点D,E,设动点P的横坐标为t.
(1)求直线
所对应的函数表达式;
(2)当
时,求t的值;
(3)作
轴,交直线
于点F.在点P运动过程中,是否存在某一时刻,使得A,E,F,P四点构成的四边形是平行四边形?若存在,求出点P的坐标;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc0d82cb174d173b7e36937c3f99f591.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1d8d5cea065075fe50706abe3ae802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1d8d5cea065075fe50706abe3ae802.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/20/b956a1b3-449f-43b6-9487-bab492cacaa4.png?resizew=473)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8e2403867bc4f1a8d2faa183c608463.png)
(3)作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20008ade7e23b01f5abdee57fa05a63d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1d8d5cea065075fe50706abe3ae802.png)
更新时间:2023-10-10 17:43:05
|
相似题推荐
解答题-问答题
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【推荐1】如图,抛物线
与x轴交于点
和点B,与y轴交于点
,顶点为D,连接
,
,
,直线
与拋物线的对称轴l交于点E.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/23383965-973f-4a29-add6-326b24881583.png?resizew=159)
(1)求拋物线的解析式和直线
的解析式.
(2)若P是第一象限内抛物线上的动点,连接
,
,当
时,求点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a13ec30801fb4f6ccb49b3ef5ecab52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/865638eb4f3818d76cd28a045b70e17d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/23383965-973f-4a29-add6-326b24881583.png?resizew=159)
(1)求拋物线的解析式和直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)若P是第一象限内抛物线上的动点,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd6c42c89636de7e0d47271effdd1a74.png)
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【推荐2】如图,已知抛物线
与x轴交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/7/7fd24929-1dde-4017-98d9-e9deb7a78c90.png?resizew=137)
(1)求m的值和顶点M的坐标;
(2)求直线
的解析式
;
(3)根据图象,直接写出当
时x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dd1e76c8f6fdffdf2e0da9a29b86f73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448c0a5ee776d19ce8e42ac9a5fd27c4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/7/7fd24929-1dde-4017-98d9-e9deb7a78c90.png?resizew=137)
(1)求m的值和顶点M的坐标;
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
(3)根据图象,直接写出当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f99df1a7b58018125b99578b779342.png)
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【推荐1】如图,直线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
与x轴交于点D,直线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
与x轴交于点A,且经过定点
,直线
与
交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/25/e786a4c7-321b-43b3-8795-bf328ff8e6c9.png?resizew=180)
(1)求k、b和m的值;
(2)求
的面积;
(3)在x轴上是否存在一点E,使
的周长最短?若存在,请求出点E的坐标和
的最短周长;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d69beb26e65876cb35953834d7cd96cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe16bd08f1868a787425436e54e6d2b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c18bf37fd17717a128b123595b845694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9316f8a58f503d0ea3879b8be30eaae.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/25/e786a4c7-321b-43b3-8795-bf328ff8e6c9.png?resizew=180)
(1)求k、b和m的值;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ac5396c5ea442e0364b50c1db3d2da.png)
(3)在x轴上是否存在一点E,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
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【推荐2】在平面直角坐标系中,点
,
,
,且
.
(1)点
的坐标为______,点
的坐标为______;
(2)将线段
平移至
,点
和点
为对应点,点
和点
为对应点,当点
和点
分别落在两条坐标轴上时,求点
的坐标;
(3)若点
在第一象限,且在直线
上,点
关于
轴的对称点为点
.若
的面积为8,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82388095a4e6d9decccae2b24fe28138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc53529cdf4112bcfacb855b732bd4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5356182cc3bc478f7c2e3e6dee25e58d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f192f57e364f4cf5ca045615be3289.png)
(1)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)将线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5356182cc3bc478f7c2e3e6dee25e58d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4c625a55ef1d2920a0605d52c8da23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/2021/4/19/2703408422182912/2706006459244544/STEM/932db356-b14f-4c5b-aa23-f86a38bb3419.png)
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【推荐1】如图,已知平行四边形ABCD的对角线AC、BD相交于点O,且∠1=∠2.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/26/94edfb4d-f986-44f3-98f9-c3450e4c1091.png?resizew=176)
(1)求证:平行四边形ABCD是菱形;
(2)E是AD上一点,连结CE交BD于点F.且
,求证:
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/26/94edfb4d-f986-44f3-98f9-c3450e4c1091.png?resizew=176)
(1)求证:平行四边形ABCD是菱形;
(2)E是AD上一点,连结CE交BD于点F.且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7faabc484ce3666706c1beffda4bcfe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e65781464f3332d8a0fbdbba41d911e.png)
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【推荐2】如图,在▱ABCD中,对角线AC与BD相交于点E,∠AEB=45°,BD=2,将△ABC沿AC所在直线翻折90°到其原来所在的同一平面内,若点B的落点记为B′,求DB′的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/14/70458b16-6486-415d-acbb-2a4530a40ee8.png?resizew=364)
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