已知:把
和
按如图(1)摆放(点
与点
重合),点
、
(
)、
在同一条直线上.
,
,
,
,
.如图(2),
从图(1)的位置出发,以
的速度沿
向
匀速移动,在
移动的同时,点
从
的顶点
出发,以2 cm/s的速度沿
向点
匀速移动.当
的顶点
移动到
边上时,
停止移动,点
也随之停止移动.
与
相交于点
,连接
,设移动时间为![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/76e308c46a2349f38547ddd72ccb4919.png)
.
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/5dbbcaa578c544c7a72d525259f070e8.png)
(1)当
为何值时,点
在线段
的垂直平分线上?
(2)连接
,设四边形
的面积为
,求
与
之间的函数关系式;是否存在某一时刻
,使面积
最小?若存在,求出
的最小值;若不存在,说明理由.
(3)是否存在某一时刻
,使
、
、
三点在同一条直线上?若存在,求出此时
的值;若不存在,说明理由.(图(3)供同学们做题使用)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/fa8f03b7352b4adcb9b2b9d7adb59601.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/cacae70e8cd74b00aa416a9a4d8e03d0.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/79ecc44b93ea47c5b3d3c13a39bf0cb0.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/bd894e9de90e4eb288615f124e6a8e95.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/a53cc3364c434666ab9fe8054f44c4e3.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/79ecc44b93ea47c5b3d3c13a39bf0cb0.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/bd894e9de90e4eb288615f124e6a8e95.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/72f89e122fe647f797b35153d9bf5454.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/9c2aedccd07e40939ada937fbcfa86c5.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/3bb9d844c7e84171a807846b98372a5d.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/f9504674248c406db3078c9c435ed493.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/210480d23c0046d8bf6c9288ee0f9d7d.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/1de7d5eb1bdc4bb3b174d8d08c47da4d.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/340ccd67554f465e83382233a20a9d1e.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/48ab885f3abe44c1b795f04c55adf464.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/2ae36325768543f0991970c1d0a3921a.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/febd1bbd077142648941ac037a6a8241.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/340ccd67554f465e83382233a20a9d1e.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/683666bac78141e59bd32bb438f34092.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/febd1bbd077142648941ac037a6a8241.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/a53cc3364c434666ab9fe8054f44c4e3.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/6845919285f6444e9faefd66c5920d04.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/8ad4747ed18844f793613ac082869197.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/340ccd67554f465e83382233a20a9d1e.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/e1a0ade98f8b48a1b54434d08f54bace.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/04292280201245a28e42ff21103490cf.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/340ccd67554f465e83382233a20a9d1e.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/683666bac78141e59bd32bb438f34092.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/6e73574c487d4a23a0238cfb7d7eb68a.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/04292280201245a28e42ff21103490cf.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/f7d757c902a646e2aa3d6963bd564b16.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/2b31cb1d8a30403eb079d2a7977cbd2a.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/76e308c46a2349f38547ddd72ccb4919.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/d8cd8f3fd22f4169869793b8f9616197.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/5dbbcaa578c544c7a72d525259f070e8.png)
(1)当
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/a390f01e48eb4fa7837e9db4f799f2a1.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/8ad4747ed18844f793613ac082869197.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/2b31cb1d8a30403eb079d2a7977cbd2a.png)
(2)连接
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/be1a0075c9b34aeead1a9b4e0f7bd659.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/982a309039c74a5e9f7bf147ee023a0b.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/f2a09cd254f342008e5f044fb291e2b2.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/3824c0315505414d9fc6cd773667c5ea.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/a390f01e48eb4fa7837e9db4f799f2a1.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/a390f01e48eb4fa7837e9db4f799f2a1.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/3824c0315505414d9fc6cd773667c5ea.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/3824c0315505414d9fc6cd773667c5ea.png)
(3)是否存在某一时刻
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/a390f01e48eb4fa7837e9db4f799f2a1.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/683666bac78141e59bd32bb438f34092.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/f7d757c902a646e2aa3d6963bd564b16.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/72f89e122fe647f797b35153d9bf5454.png)
![](https://img.xkw.com/dksih/QBM/2013/6/24/1573666515787776/1573666522251264/STEM/a390f01e48eb4fa7837e9db4f799f2a1.png)
更新时间:2016-12-05 18:15:38
|
相似题推荐
解答题-证明题
|
较难
(0.4)
【推荐1】在平面直角坐标系xoy中,抛物线y=a(x-m)(x-n)(a<0,m<n)与x轴交于A、B(点A在点B的左边),与y轴相交于点C.直线y=h与抛物线相交于P(x1,y1)、Q(x2,y2)两点(P、Q不重合),与直线BC交于点N(x3,y3).
(1)若a=-1,m=1,n=3,
①求线段AB的长;
②当h<1时,证明:x1+x2的值不会随着h的变化而变化;
(2)若点A在直线BC的上方,
①求m 的取值范围;
②令h=m²,一定存在一个a的值,对于任何符合
(t>0)的m、n均可以使得x1+x2-x3恒为定值,求a的值以及t的取值范围.
(1)若a=-1,m=1,n=3,
①求线段AB的长;
②当h<1时,证明:x1+x2的值不会随着h的变化而变化;
(2)若点A在直线BC的上方,
①求m 的取值范围;
②令h=m²,一定存在一个a的值,对于任何符合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b0656b16a05e94fa68e9cf19e27eab.png)
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解答题-问答题
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名校
解题方法
【推荐2】如图抛物线
经过点
,点
,点
.
(1)求抛物线的解析式及其对称轴;
(2)点P为抛物线上一点,连接CP,若直线CP分四边形CBPA的面积为
的两部分,求点P的坐标.
(3)点D、E是直线
上的两个动点,且
,点D在点E的上方,求四边形ACDE的周长的最小值及此时点D的坐标.
![](https://img.xkw.com/dksih/QBM/2021/11/18/2854152334024704/2857990482534400/STEM/8a852306-f17c-4b6c-9492-a2bbeb4ca4e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb8c59f28ff09ad1123be71defccf4c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41b8d90bef26f2ddc7444b5c6481fe5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec15578ee35dcea2ac58e2ab1023024.png)
(1)求抛物线的解析式及其对称轴;
(2)点P为抛物线上一点,连接CP,若直线CP分四边形CBPA的面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5881f1ce9b4172ca346032d0fd1e3d.png)
(3)点D、E是直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82773737609e65dea3c5c67099f1b10d.png)
![](https://img.xkw.com/dksih/QBM/2021/11/18/2854152334024704/2857990482534400/STEM/8a852306-f17c-4b6c-9492-a2bbeb4ca4e7.png)
![](https://img.xkw.com/dksih/QBM/2021/11/18/2854152334024704/2857990482534400/STEM/22322028-76cc-4eff-8066-5d0cb4c2f4ba.png)
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解答题-问答题
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(0.4)
【推荐3】如图,在平面直角坐标系中,矩形
的边
在x轴上,边
在y轴上,且B点坐标为
.动点M、N分别从点O、B同时出发,以1单位/秒的速度运动(点M沿
向终点A运动,点N沿
向终点C运动),过点N作
交
于点P,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/16/c485fed1-6f76-46ea-8b7b-6d8a48cf8a0d.png?resizew=318)
(1)直接写出
的长度;
(2)在运动过程中,请求出
的面积S与运动时间t的函数关系式;
(3)在运动过程中,
的面积S是否存在最大值?若存在,请求出当t为何值时有最大值,并求出最大值;若不存在,请说明理由.
(4)在运动过程中,以点A,P,M为顶点的三角形与
能相似吗?若能相似,请求出运动时间t的值;若不能相似,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/607543bb9f55b8a141ed2d6cf0e1a20b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a4bbb2e220a7eeac8218712558d3637.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a39d6ce9d0576637f71302448751076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438f34bc8b04e8c494b91306ac6fe352.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/16/c485fed1-6f76-46ea-8b7b-6d8a48cf8a0d.png?resizew=318)
(1)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b03a0c8b7c3b7af9dce15e3a647541.png)
(2)在运动过程中,请求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae6906b2770efd77e89c396ff3dd336.png)
(3)在运动过程中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae6906b2770efd77e89c396ff3dd336.png)
(4)在运动过程中,以点A,P,M为顶点的三角形与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bbf9680f74a9ac5d934304654ce2771.png)
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解答题-证明题
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较难
(0.4)
【推荐1】如图,在四边形
中,
,
,
,点
为
边上一点,连接
,
.
与
交于点
,且
∥
.
![](https://img.xkw.com/dksih/QBM/2020/1/13/2376189954367488/2376767039111168/STEM/99cef090c98f49b79279238ac372ce43.png?resizew=121)
(1)求证:
;
(2)若
,
. 求
的长 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62974e32fac0b8857d855464877fa071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f6ee56e19c3264fe5cb79a96c5657c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/968cbf9115bc83c822f5bd7de1b941e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2020/1/13/2376189954367488/2376767039111168/STEM/99cef090c98f49b79279238ac372ce43.png?resizew=121)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1720d0d058eddc86bfbc89be99b3168.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b3a593f7126c0f4629df5ae20c5500a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3638d0d12ca02697ef4f7886d846b30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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解答题-证明题
|
较难
(0.4)
名校
解题方法
【推荐2】如图1,以
为直径作半圆
,点
在半圆上,连结
且
.连结
是
边上的高,过点
作
交
的延长线于点
,交
于点
.
求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512d213416ddc9b11eac34400881e78b.png)
当
为
的中点时,求
的值.
![](https://img.xkw.com/dksih/QBM/2020/7/6/2500183930576896/2501481542729728/STEM/826b25bb5c1348299358db163856d49c.png?resizew=238)
如图2,取
的中点
,连结
.若
在点
运动过程中,当四边形
的其中一边长是
的
倍时,求所有满足条件的
长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d55845b39ec874c38d44768fffd193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c74209829add874d1d4173658533aae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa8951aaf5916959f5d97a1c55ddb262.png)
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【推荐1】如图,已知抛物线的对称轴是x=-4,抛物线与x轴交于A,B两点,与y轴交于C点,O是坐标原点,且A,C的坐标分别是(-2,0),(0,3).
(1)求抛物线的解析式;
(2)抛物线上有一点是P,满足∠PBC=90º,求P点的坐标;
(3)y轴上是否存在点E使得△AOE与△PBC相似?若存在求出点E的坐标,若不存在,请说明理由.
(1)求抛物线的解析式;
(2)抛物线上有一点是P,满足∠PBC=90º,求P点的坐标;
(3)y轴上是否存在点E使得△AOE与△PBC相似?若存在求出点E的坐标,若不存在,请说明理由.
![](https://img.xkw.com/dksih/QBM/2018/9/15/2032984317968384/2055581390495744/STEM/bd43b77a54bd4402be24cf45f9eadf6c.png?resizew=275)
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【推荐2】【试题再现】如图1,
中,
,
,直线
过点
,过点
、
分别作
于点
,
于点
,则
(不用证明).
(1)【类比探究】如图2,在
中,
,且
,上述结论是否成立?若成立,请说明理由:若不成立,请写出一个你认为正确的结论.
(2)【拓展延伸】①如图3,在
中,
,且
,猜想线段
、
、
之间有什么数量关系?并证明你的猜想.
②若图1的
中,
,
,并将直线
绕点
旋转一定角度后与斜边
相交,分别过点
、
作直线
的垂线,垂足分别为点
和点
,请在备用图上画出图形,并直接写出线段
、
、
之间满足的一种数量关系(不要求写出证明过程).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/26/93df98e3-1419-4a8a-a7ea-90364a5c7d55.png?resizew=262)
(1)【类比探究】如图2,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd97844a2deea75344e7d91440f971e.png)
(2)【拓展延伸】①如图3,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8d02e73788acf2e77ad79aa1a6586cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd97844a2deea75344e7d91440f971e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
②若图1的
![](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/f8d02e73788acf2e77ad79aa1a6586cf.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/f52a58fbaf4fea03567e88a9f0f6e37e.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
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【推荐3】如图1,一次函数y=﹣x+b与反比例函数
(k≠0)的图象交于点A(1,3),B(m,1),与x轴交于点D,直线OA与反比例函数
(k≠0)的图象的另一支交于点C,过点B作直线l垂直于x轴,点E是点D关于直线l的对称点.
![](https://img.xkw.com/dksih/QBM/2018/2/7/1877059476611072/1889706451288064/STEM/bc5931d8ffad496fae385889b296994a.png?resizew=455)
(1)k= ;
(2)判断点B、E、C是否在同一条直线上,并说明理由;
(3)如图2,已知点F在x轴正半轴上,OF=
,点P是反比例函数
(k≠0)的图象位于第一象限部分上的点(点P在点A的上方),∠ABP=∠EBF,则点P的坐标为( , ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://img.xkw.com/dksih/QBM/2018/2/7/1877059476611072/1889706451288064/STEM/bc5931d8ffad496fae385889b296994a.png?resizew=455)
(1)k= ;
(2)判断点B、E、C是否在同一条直线上,并说明理由;
(3)如图2,已知点F在x轴正半轴上,OF=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
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