在平面直角坐标系xOy中,对于点P,O,Q给出如下定义:若OQ<PO<PQ且PO≤2,我们称点P是线段OQ的“潜力点”
已知点O(0,0),Q(1,0)
(1)在P1(0,-1),P2(
,
),P3(-1,1)中是线段OQ的“潜力点”是_____________;
(2)若点P在直线y=x上,且为线段OQ的“潜力点”,求点P横坐标的取值范围;
(3)直线y=2x+b与x轴交于点M,与y轴交于点N,当线段MN上存在线段OQ 的“潜力点”时,直接写出b的取值范围
已知点O(0,0),Q(1,0)
(1)在P1(0,-1),P2(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
(2)若点P在直线y=x上,且为线段OQ的“潜力点”,求点P横坐标的取值范围;
(3)直线y=2x+b与x轴交于点M,与y轴交于点N,当线段MN上存在线段OQ 的“潜力点”时,直接写出b的取值范围
21-22九年级上·北京昌平·期末 查看更多[4]
北京市昌平区2021-2022学年九年级上学期期末数学试题北京市第一六一中学2022-2023学年九年级上学期12月数学训练试卷北京市人民大学附属中学朝阳学校2023-2024学年九年级上学期月考数学试题(已下线)期末各名校真题复习(压轴必刷48题15考点)-2023-2024学年八年级数学下学期期中期末考点归纳满分攻略讲练(人教版)
更新时间:2022-01-11 21:12:14
|
相似题推荐
解答题-问答题
|
较难
(0.4)
【推荐1】已知函数
的图象经过第四象限的点B(3,a),且与x轴相交于原点和点A(7,0)
![](https://img.xkw.com/dksih/QBM/2019/8/29/2279457102446592/2282551004864512/STEM/8d8f532d1da34fc58b28767a322a3e2b.png?resizew=159)
(1)求k、b的值;
(2)当x为何值时,y>﹣2;
(3)点C是坐标轴上的点,如果△ABC恰好是以AB为腰的等腰三角形,直接写出满足条件的点C的坐标
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61f911a866edfdd7bbf7326da8877ee9.png)
![](https://img.xkw.com/dksih/QBM/2019/8/29/2279457102446592/2282551004864512/STEM/8d8f532d1da34fc58b28767a322a3e2b.png?resizew=159)
(1)求k、b的值;
(2)当x为何值时,y>﹣2;
(3)点C是坐标轴上的点,如果△ABC恰好是以AB为腰的等腰三角形,直接写出满足条件的点C的坐标
您最近一年使用:0次
解答题-作图题
|
较难
(0.4)
名校
【推荐2】如图,直线
交于点C(2,
),
为
,且与
轴交于点A;
为
,且与
轴交于点B.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/11/408a745f-cbb0-4bd5-9981-5b972fb42dd1.png?resizew=179)
(1)求出
的表达式;
(2)如果点P在直线
上,若
,求点P的坐标;
(3)在y轴上存在点Q,使得△AQC的周长最小,请在图中画出点Q的位置,并直接写出点Q的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca1a567b70106eb6f0f2693376d3045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c653f3ac494070e375977c3bcb3ede1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2617bc966d043c68fb601ebb815b4f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/11/408a745f-cbb0-4bd5-9981-5b972fb42dd1.png?resizew=179)
(1)求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
(2)如果点P在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55343cf63d41d6b749d9650a6ef3be68.png)
(3)在y轴上存在点Q,使得△AQC的周长最小,请在图中画出点Q的位置,并直接写出点Q的坐标.
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐1】四边形
和
是正方形,直线
交于点P.
(1)如图1,点G在边
上,判断线段
和
的数量与位置关系,并证明;
(2)如图2,将正方形
绕点A旋转一个锐角.
①(1)中线段
和
的数量与位置关系是否仍成立?说明理由;
②若正方形
的边长为
,在正方形
的旋转过程中,请直接写出点P到直线
的最大距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d0e8404f347a0eb4c76f4d25d9bdac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf2a9f69ea5ae75ba7cfbc271f4db966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/18/0d11506a-1ef6-4eb2-8569-24c06b91f384.png?resizew=342)
(1)如图1,点G在边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
(2)如图2,将正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d0e8404f347a0eb4c76f4d25d9bdac.png)
①(1)中线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
②若正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd6f4250ca6b1b9bce234a01f00d44d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d0e8404f347a0eb4c76f4d25d9bdac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐2】已知
是
的一条弦,点C 在
上,连结
并延长,交弦
于点D,且
.
平分
,求证:
;
(2)如图2,如果
,求
的值;
(3)延长线段
交弦
于点E,如果
是等腰三角形,且
的半径长等于2,求弦
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc93e193fad261689949a52819753f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7305de9211785b826823153897b17517.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
(2)如图2,如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f5f5584d03eca03c1e3fa68e7257b74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30ec5997872628f4606a2b4fce9d3a55.png)
(3)延长线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38889cbe3ea9186897a7624e123a6e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐1】如图,
是
的直径,点
是
上的点,且
,连接
,过点
作
的切线,交
的延长线于点
,交
的延长线于点
,过点
作
于点
,交
于点
.
;
(2)若
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa92a4b463c8b53ece2fa02d30188f59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/eaa106172cc7b3db22ebbcbc1fe84c04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c1c122603b60b6f1a1334ddb56c3fb7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc12eff1ddc83f80208a57f5e8fe1219.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7cbfaec1d9dcaaf159b060163436113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83f1f880e5ffbff036953acaca90c41.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
名校
【推荐2】如图1,
为
的外接圆,点B为
的中点,点F为劣弧
上除弧中点外一动点,连接
,
,连接
交
于D点,过F点作
的切线交直线
于E点.
,则
______
,若
,则
的面积
______;
(2)判断
的形状,并进行证明;
(3)已知
的半径为r,如图2,取
延长线上一点G,连接
,且
平分
.
①求
;(结果用r表示)
②
是否为定值,若是请求出定值,若不是请说明理由.(结果用r表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0ff808cf596294204a404d0a34f3e3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cc4908fa31c032d29c1b1057d7dbaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a5e484dfef494d27bc35ae7b8cf75d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2979f64c85f82d8975d73ee1c342de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f46bee782634d8cfc14582960f18646.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465ce314e8fa489b91dcd5f8e02cef9f.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d15ce2717e4afd53eeb5997bd88763d7.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐1】如图,在矩形ABCD中,对角线AC、BD相交于点O,过点D作
于点E,作点E关于AD的对称点F,连接AF,FD,延长FD交BC的延长线于点N,交AC的延长线于点M.
![](https://img.xkw.com/dksih/QBM/2022/4/26/2973488478306304/2977950429036544/STEM/6ad4faf0-f581-4a06-a275-09bfc7d6d757.png?resizew=187)
(1)判断AF与BD的位置关系并证明;
(2)求证:
;
(3)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68fbbd17c89f03dbb61cd6ffdb9a0344.png)
![](https://img.xkw.com/dksih/QBM/2022/4/26/2973488478306304/2977950429036544/STEM/6ad4faf0-f581-4a06-a275-09bfc7d6d757.png?resizew=187)
(1)判断AF与BD的位置关系并证明;
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d64d9dd9a8d42eee6ea055218037fbc3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4de91787c3db2672b6f59b6460be95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/273c6871eb28cefd026a4ee2e428f4ac.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】综合与探究
如图,抛物线
与
轴交于
,
两点,与
轴交于点
,连接
,
.
是直线
上方抛物线上的一个动点,点
的横坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/22/d535fbaa-9d65-4cd7-a1b7-a479d7c48c42.png?resizew=437)
(1)求
,
,
三点的坐标,并直接写出直线
的函数表达式;
(2)如图,过点
作
轴,垂足为
,
与
交于点
.当
是线段
的三等分点时,求点
的坐标;
(3)如图,过点
作
的平行线
,与抛物线的对称轴交于点
,与线段
交于点
.抛物线的对称轴与
交于点
.当
时,请直接写出
的长.
如图,抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a707e2d3361739d358880e76443167.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/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/764509115979e9958101808383672ec0.png)
![](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/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/22/d535fbaa-9d65-4cd7-a1b7-a479d7c48c42.png?resizew=437)
(1)求
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
(2)如图,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3a3db6d96518255f96ad7fc1ac98f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d9792485ccd1ba479ceba6397c15ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d9792485ccd1ba479ceba6397c15ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)如图,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.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/e1a9c6a736e6eac98a676fa3232db5a5.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/8c30234a662e2f79fd59c801ac160ded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
您最近一年使用:0次