综合与探究:如图,直线AB:
分别交x轴,y轴于点B,E,过点A作直线
分别交x轴,y轴于点
,
.
(1)求直线
的解析式.
(2)在y轴左侧作直线
轴,分别交直线
,
于点F,G.当
时,过点G作直线
轴,交y轴于点H.能否在直线
上找一点P,使
的值最小,求出P点的坐标.
(3)M为直线
上一点,在(2)的条件下,x轴上是否存在点Q使得以P,Q,M,O为顶点的四边形为平行四边形?若存在,请直接写出点Q的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/541362cd05ee3dfad9b4d94f2fdcfea0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae93336ce289b749289f44a6db4cc644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ad33f77780bc66767888db38bb19ab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/5/8d6fabde-8ae7-41a9-9721-307a99e8054c.png?resizew=315)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)在y轴左侧作直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aae89fc3ee031798e3f1beb34daa24f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07be80f98b5843667481b96608fb796d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa2cdc1060b024d3ab7955d101a049e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe71d7ceeaf7efdb57793c7a3a930cfc.png)
(3)M为直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
更新时间:2023-08-29 20:08:10
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相似题推荐
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【推荐1】2022年冬奥会成功在北京张家口举行,奥林匹克精神鼓舞了越来越多的年轻人从事冰雪运动.在长
,高
的斜面上,滑雪运动员P从顶端腾空而起,最终刚好落在斜面底端,其轨迹可视为抛物线的一部分.按如图方式建立平面直角坐标系,设斜面所在直线的函数关系式为
,运动员轨迹所在抛物线的函数关系式为
,设运动员P距离地面的高度为
,腾空过程中离开斜面的距离为
,回答下列问题:
![](https://img.xkw.com/dksih/QBM/2022/2/5/2909934853464064/2923206086369280/STEM/60715d66812b4b53be379e8cdc3a0a45.png?resizew=291)
(1)分别求出
、
与x之间的函数关系式;
(2)求出h的最大值和此时点P的坐标;
(3)求出d的最大值和此时点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00be2f5a88cf57caaaa92369367d210e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d568856b3349a45f8b95d4a6454a858.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed06ccefffc165f9c77250cd28301d8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce603674d7fcf5d7985c2e158d654003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a40420dc952f91a7d333f84771cc7f6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495103dee409cf26388426d0ebc776cb.png)
![](https://img.xkw.com/dksih/QBM/2022/2/5/2909934853464064/2923206086369280/STEM/60715d66812b4b53be379e8cdc3a0a45.png?resizew=291)
(1)分别求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
(2)求出h的最大值和此时点P的坐标;
(3)求出d的最大值和此时点P的坐标.
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【推荐2】如图,在平面直角坐标系中,点A的坐标为(4,0),点P是第一象限内直线y=-x+6上一点.O是坐标原点.
![](https://img.xkw.com/dksih/QBM/2018/3/2/1893343785320448/1896553005056000/STEM/bfbe7803a5274506a687cf47c93119a8.png?resizew=121)
(1)设P(x,y),求△OPA的面积S与x的函数解析式;
(2)当S=10时,求P点的坐标;
(3)在直线y=-x+6上求一点P,使△POA是以OA为底边的等腰三角形.
![](https://img.xkw.com/dksih/QBM/2018/3/2/1893343785320448/1896553005056000/STEM/bfbe7803a5274506a687cf47c93119a8.png?resizew=121)
(1)设P(x,y),求△OPA的面积S与x的函数解析式;
(2)当S=10时,求P点的坐标;
(3)在直线y=-x+6上求一点P,使△POA是以OA为底边的等腰三角形.
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【推荐1】已知菱形
的边长为2,
,对角线
、
相交于点O.点M从点B向点C运动(到点C时停止),点N为
上一点,且
,连接
交
于点P.
(1)写出菱形
的面积___________;
(2)如图1,过点D作
于点G,若
,求点C到AM的距离?
(3)如图2,点E是
上一点,且
,连接
、
.试判断:在运动过程中;
是否存在最小值?若存在,请求出:若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3181e58f09e9fec4e43e422b82831b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/20/2896b826-84f2-4f52-94d1-ba1a54dea3f1.png?resizew=408)
(1)写出菱形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)如图1,过点D作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7017538b880cd2319da2a9d49fb87e44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/321e703e5c05e409700194fc9472ed1b.png)
(3)如图2,点E是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3201e1af764dbaf31cd1a239882bb59c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddfdcf3af4c3baa4a3f2eef086544451.png)
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【推荐2】问题提出
(1)如图1,点A,B分别在直线l的两侧,分别过点A,B作直线l的垂线,垂足分别为M,N,
,P是直线l上一点,求
的最小值.
问题探究
(2)如图2,点A,B分别在直线l的同一侧,分别过点A,B作直线l的垂线,垂足分别为M,N,
,P是直线l上一点,求
的最小值.
问题解决
(3)如图3,某市进行河滩治理,将原来一条废弃的小河通过规划后建成一条集旅游、休闲、餐饮于一体的景点.如图,
是两条互相垂直的旅游大道,A,B是位于河中的两座休闲小岛,且岛A与
的距离为20m,与
的距离为30m,岛B与
的距离为40m,与
的距离为20m.现计划在旅游大道
处选一点P,修建桥梁
,通往A,B两岛,并修建桥梁
,将A,B两岛连起来,计算所修建的所有桥梁的最短长度.(结果保留根号)
(1)如图1,点A,B分别在直线l的两侧,分别过点A,B作直线l的垂线,垂足分别为M,N,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1005054e868c861d51f543246bc629ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13ec9a812274ad0839f20ba17348687.png)
问题探究
(2)如图2,点A,B分别在直线l的同一侧,分别过点A,B作直线l的垂线,垂足分别为M,N,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee8798519dfa016ec68eae75811f192.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13ec9a812274ad0839f20ba17348687.png)
问题解决
(3)如图3,某市进行河滩治理,将原来一条废弃的小河通过规划后建成一条集旅游、休闲、餐饮于一体的景点.如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f65dbed884e2248ec075655c684aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/03aafbdf-1600-4433-9197-a573672045f3.png?resizew=542)
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【推荐2】如图,
中,
,
,把
绕点
顺时针旋转角
(
),得到
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/cca1b5cd-8cf4-443b-b96d-7967a505dfff.png?resizew=301)
(1)当
时,判断点
是否在直线
上,并说明理由;
(2)连接
,设
与
交于点
,当
为何值时,四边形
是平行四边形?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c633830c6e2ac6d8d6e18890ef5ee33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ccc37b189fa2cbc269ca0b233dac37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f80470ada6d25bae9c8b5059767e382c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c633830c6e2ac6d8d6e18890ef5ee33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1ebeb1d21ea51e993f82f9f83bb7236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae840fd3579a60298b7b6d860e27b3fd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/cca1b5cd-8cf4-443b-b96d-7967a505dfff.png?resizew=301)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97cf714ffb3fd5917a76b191640b55fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6637859805b7b01f7a9a64771563406e.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270ddac9587bf1ea553914cb69595ab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270ddac9587bf1ea553914cb69595ab2.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/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9448663d4040be62a1d0730f9ee05337.png)
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【推荐1】如图,直线
分别与
轴、
轴交于
,
两点,在
上取一点
,以线段
为边向右作正方形
,正方形
沿
的方向以每秒
个单位长度的速度向右做匀速运动,设运动时间为
秒
.
(1)求直线
的解析式;
(2)在正方形
向右运动的过程中,若正方形
的顶点落在直线
上,求
的值;
(3)设正方形
两条对角线交于点
,在正方形向右运动的过程中,是否存在实数
,使得
有最小值?若存在,请直接写出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/109a293cef44f23e86e22c1a4cfcbbe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d429efe96d68065e7d433c996682791d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/114460aab294eb99eec63e94b675216f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a363df9127fb019f87ec53470c50dcc3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/21/121676c9-4dc0-47ee-ac4c-ea9970023268.png?resizew=173)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)在正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)设正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/562776369b6be19384edf2a177b7ff76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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【推荐2】问题探究:在边长为4的正方形ABCD中,对角线AC、BD交于点O.
探究1:如图1,若点P是对角线BD上任意一点,求线段AP的长的取值范围;
![](https://img.xkw.com/dksih/QBM/2018/10/5/2047096156479488/2055511351197696/STEM/0036f0e305744d48baeb4d0357150520.png?resizew=448)
探究2:如图2,若点P是△ABC内任意一点,点M、N分别是AB边和对角线AC上的两个动点,则当AP的值在探究1中的取值范围内变化时,△PMN的周长是否存在最小值?如果存在,请求出△PMN周长的最小值,若不存在,请说明理由;
问题解决:如图3,在边长为4的正方形ABCD中,点P是△ABC内任意一点,且AP=4,点M、N分别是AB边和对角线AC上的两个动点,则当△PMN的周长取到最小值时,直接求四边形AMPN面积的最大值.
探究1:如图1,若点P是对角线BD上任意一点,求线段AP的长的取值范围;
![](https://img.xkw.com/dksih/QBM/2018/10/5/2047096156479488/2055511351197696/STEM/0036f0e305744d48baeb4d0357150520.png?resizew=448)
探究2:如图2,若点P是△ABC内任意一点,点M、N分别是AB边和对角线AC上的两个动点,则当AP的值在探究1中的取值范围内变化时,△PMN的周长是否存在最小值?如果存在,请求出△PMN周长的最小值,若不存在,请说明理由;
问题解决:如图3,在边长为4的正方形ABCD中,点P是△ABC内任意一点,且AP=4,点M、N分别是AB边和对角线AC上的两个动点,则当△PMN的周长取到最小值时,直接求四边形AMPN面积的最大值.
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