如图1,在矩形
中,
,动点P从点A出发,沿折线
运动,当它运动到点C时停止运动,过点D作
交
于点
.若
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/19/4e579cc5-f1e7-422f-a224-70834a611a88.png?resizew=413)
(1)请直接写出y关于x的函数关系式,并注明自变量x的取值范围;
(2)如图2,在给定的平面直角坐标系中,画出y关于x的函数图象,并写出y的一条性质;
(3)当点P在
边上运动时,若
与
的面积之比是
,求此时y的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73ba94cec6c03980be9ca03774379fa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd66776565f049eb453c14fcaf79234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6977bef1990627007a0412bdcfead18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5555b441d31e286b34d361e7b140e7f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ca394cdfb2a39b6bc7fd2a555ea995d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/19/4e579cc5-f1e7-422f-a224-70834a611a88.png?resizew=413)
(1)请直接写出y关于x的函数关系式,并注明自变量x的取值范围;
(2)如图2,在给定的平面直角坐标系中,画出y关于x的函数图象,并写出y的一条性质;
(3)当点P在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5d0162d0ee5286bf0f1996d7180382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
更新时间:2024-02-19 16:52:22
|
相似题推荐
解答题-问答题
|
适中
(0.65)
真题
【推荐1】(2011广西梧州,26,12分)如图,在直角梯形ABCD中,AD∥BC,∠B=90°,AD=6cm,AB=8cm,BC=14cm.动点P、Q都从点C出发,点P沿C→B方向做匀速运动,点Q沿C→D→A方向做匀速运动,当P、Q其中一点到达终点时,另一点也随之停止运动.
(1)求CD的长;
(2)若点P以1cm/s速度运动,点Q以
cm/s的速度运动,连接BQ、PQ,设△BQP面积为S(cm2),点P、Q运动的时间为t(s),求S与t的函数关系式,并写出t的取值范围;
(3)若点P的速度仍是1cm/s,点Q的速度为acm/s,要使在运动过程中出现PQ∥DC,请你直接写出a的取值范围.
(1)求CD的长;
(2)若点P以1cm/s速度运动,点Q以
![](https://img.xkw.com/dksih/QBM/2011/8/18/1573243443412992/1573243485839360/STEM/a9f8cecd718d4099b09260a1f648ba3f.png)
(3)若点P的速度仍是1cm/s,点Q的速度为acm/s,要使在运动过程中出现PQ∥DC,请你直接写出a的取值范围.
![](https://img.xkw.com/dksih/QBM/2011/8/18/1573243443412992/1573243485839360/STEM/b34bef56aeab4e17a3d498af1dd83d83.png)
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解答题-作图题
|
适中
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【推荐2】如图,在矩形
中,
,动点
以每秒3个单位长度的速度从
出发,点
以每秒4个单位长度的速度从
出发,点
沿折线
方向运动,点
沿折线
方向运动,当两者相遇时停止运动,设运动时间为
秒,点
的距离为
.
(1)请直接写出
关于
的函数表达式并注明自变量
的取值范围;
(2)在给定的平面直角坐标系中画出这个函数的图象,并写出该函数的一条性质;
(3)写出点
相距5个单位长度时,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e9c0cad0b75ac1851e07cc4b0d336ab.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1da0304251a6a0966cd5238660dfa9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7012d1ff11db5e150182e19646814cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf9b288c48c73463a2f214f02b6952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/18/4b28fe81-389e-4030-8b95-902792f917c2.png?resizew=375)
(1)请直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)在给定的平面直角坐标系中画出这个函数的图象,并写出该函数的一条性质;
(3)写出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf9b288c48c73463a2f214f02b6952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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解答题-问答题
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【推荐1】如图,抛物线
与x轴交于点A(-2,0),与反比例函数
图象交于点B,过点B作BQ⊥y轴于点Q,BQ=1.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/17/b99b30c4-d04d-46d6-b81a-e0315d651496.png?resizew=166)
(1)求抛物线的表达式;
(2)若点P是抛物线对称轴上一点,当BP+OP的值最小时,求线段QP的长;
(3)若点M是平面直角坐标系内任意一点,在抛物线的对称轴上是否存在一点D,使得以A,B,D,M为顶点的四边形是菱形?若存在,请直接写出点D的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53be61cd85ec86aabd164cae0265246b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85410ff00c81839ff9a64bf86dc36f5e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/17/b99b30c4-d04d-46d6-b81a-e0315d651496.png?resizew=166)
(1)求抛物线的表达式;
(2)若点P是抛物线对称轴上一点,当BP+OP的值最小时,求线段QP的长;
(3)若点M是平面直角坐标系内任意一点,在抛物线的对称轴上是否存在一点D,使得以A,B,D,M为顶点的四边形是菱形?若存在,请直接写出点D的坐标;若不存在,请说明理由.
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解答题-问答题
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适中
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【推荐2】如图,在矩形
中,
,
,分别以
,
所在的直线为x轴和y轴建立平面直角坐标系.反比例函数
的图象交
于点E,交
于点F,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/15/2e575b42-638a-4fea-902d-b9f04718cd09.png?resizew=169)
(1)求k的值与点F的坐标;
(2)在x轴上找一点M,使
的周长最小,请求出点M的坐标;
(3)在(2)的条件下,若点P是x轴上的一个动点,点Q是平面内的任意一点,试判断是否存在这样的点P,Q,使得以点P,Q,M,E为顶点的四边形是菱形.若存在,请直接写出符合条件的点P坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434845564fd5765244f8d1aa9240fa39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd3fd00798e7ec50afafe7fa7a4f42e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9212e728b36c078188606c9d429389d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7cbfaec1d9dcaaf159b060163436113.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/15/2e575b42-638a-4fea-902d-b9f04718cd09.png?resizew=169)
(1)求k的值与点F的坐标;
(2)在x轴上找一点M,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d736f771df9dceda9f2a40b492c030a5.png)
(3)在(2)的条件下,若点P是x轴上的一个动点,点Q是平面内的任意一点,试判断是否存在这样的点P,Q,使得以点P,Q,M,E为顶点的四边形是菱形.若存在,请直接写出符合条件的点P坐标;若不存在,请说明理由.
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解答题-证明题
|
适中
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【推荐1】如图1,在
中,
,O是
上一点,以
为半径的
切
于点D,交
于点E,且
.
![](https://img.xkw.com/dksih/QBM/2023/3/14/3194652759277568/3284265483223040/STEM/48d24c8238144355b580f3dff5f734de.png?resizew=367)
(1)求证:
;
(2)如图2,连接
,求
的值.
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff29971ccc633d89832ffa9bd54afa3.png)
![](https://img.xkw.com/dksih/QBM/2023/3/14/3194652759277568/3284265483223040/STEM/48d24c8238144355b580f3dff5f734de.png?resizew=367)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c0aa4c793921fdaa5d430cb90d78ca6.png)
(2)如图2,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce11aa6ff6ce454e4bcd98a7de56dbae.png)
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解答题-作图题
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适中
(0.65)
【推荐2】如图,
是
的直径,
与
交于点
,
平分
交
于点
.
(1)尺规作图:过点
作
,垂足为
;(保留作图痕迹,不写作法)
(2)在(1)所作的图中,
①求证:
是
的切线:
②连接
,若
,
,求
的面积.
![](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/60ef95894ceebaf236170e8832dcf7e3.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/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/30/17f6fa71-f327-48ed-b792-e3df63a34d9c.png?resizew=109)
(1)尺规作图:过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68fbbd17c89f03dbb61cd6ffdb9a0344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)在(1)所作的图中,
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
②连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5490dba7da9a3f60c2f9440b2ddd0162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
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