已知点
,点
,且a、b满足
.
(1)直接写出点A,B的坐标;
(2)已知点
满足
,且三角形
面积为5(即
),求点P坐标;
(3)点
为线段
上一点.
①求
的值;
②若
,三角形
面积为S,若关于
的不等式
有4个正整数解,请直接写出x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c240561788bc63f41a6703219fb66d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48c09615735d331befd07664aa47cb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14ba9a08287aa5e127e953cc06b7cdea.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/8/b52885dd-acb5-42cf-a614-29035f62a0b1.png?resizew=264)
(1)直接写出点A,B的坐标;
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82aaa597a5aa6176863eda3fdf83e181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc98e03954af7ce4d68368e2786d6314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1bd2df83e2b8a07077a94a6642420e1.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d259822ab64b8626f3893b8432673358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf99adccc80f28343fedd8d0aad7429.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba4a581f350f0c948856990224b27e71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d77b894064689a4e396b88650bd6f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44e53f7419162ab16b0ad58e39cedb14.png)
更新时间:2023-07-03 22:32:57
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】综合与探究
如图,在数轴上,点
,
,
所表示的数分别为0,1,
,点
到点
的距离与点
到点
的距离相等,设点
在数轴上表示的数为
(点
在点
的左边).
的值.
(2)在数轴上有两点
,
表示的数为
,
,且
,求
的平方根.
(3)现将点
向左移动5个单位长度得到点
,设点
表示的数为
,在数轴上是否存在一点
所表示的数
,使得
.若存在,求出
的值;若不存在,请说明理由.
如图,在数轴上,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/a7ffe8515ff6183c1c7775dc6f94bdb8.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df468e8e7ca6579573f8edd4fae28277.png)
(2)在数轴上有两点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0563bfb201dcef3e1967fb9e3b8c584e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c096ebd0c7545abecc40b5d58ea0e7fc.png)
(3)现将点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b179d2666ff63bd5d39bf39968ab4aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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解答题-问答题
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名校
【推荐1】定义:已知三个互不相等的实数a、b、c,若满足任意两数之差的绝对值中有两个相等,则称a、b、c为“幸福三数组”;
(1)以下三组数中为“幸福三数组”的有 ;
①
、1、2;②3、
、 5;③5、 2、
;
(2)实数a与二元一次方程组
的解构成“幸福三数组”,求a的值;
(3)已知数轴上三点A、B、C所对应的数分别为x、m、n为“幸福三数组”,且
(
为正整数),若关于x的一元一次方程
的解为整数,求m的所有可能的值.
(1)以下三组数中为“幸福三数组”的有 ;
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
(2)实数a与二元一次方程组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa45490d078bb051fd15fe78bdb471d7.png)
(3)已知数轴上三点A、B、C所对应的数分别为x、m、n为“幸福三数组”,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca0b545319dd474187b97021da1230b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/748f67845a97b2158482165d0a063446.png)
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【推荐1】解下列不等式(组),并把它的解集表示在数轴上
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd72882526f7db60f3810af6a6ac564c.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc0820715f529a11bc407f8302fdccc.png)
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【推荐2】分解因式:
(1)
;
(2)
;
(3)
;
(4)解不等式组
;
(5)解不等式组
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8005c2a624ee4dbff6248e96d07103.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c03653160873dab28d7dffd6e7997b95.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a5764e2a2c923e6bccfb9b6912ecc64.png)
(4)解不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3ab2046a921a284f22c281596939d3.png)
(5)解不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5977a13c0cf32708e793ac1efcb4ff.png)
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解答题-作图题
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适中
(0.65)
名校
【推荐1】在平面直角坐标系
中,我们给出如下定义:将点M绕直线
上某一点P顺时针旋转
,再关于直线
对称,得到点N,我们称点N为点M关于点P的二次关联点.已知点
.
(1)若点P的坐标是
,直接写出点A关于点P的二次关联点的坐标____________;
(2)若点A关于点P的二次关联点与点A重合,求点P的坐标(画出图形、写出结果即可);
(3)若点A关于点P的二次关联点在直线
上,求此时点A的二次关联点的坐标及P点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/12/62a3170e-386e-4030-a18d-d9a0f3989971.png?resizew=612)
(1)若点P的坐标是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c3a2f5b0702ea9fbb9dc8904579737.png)
(2)若点A关于点P的二次关联点与点A重合,求点P的坐标(画出图形、写出结果即可);
(3)若点A关于点P的二次关联点在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/501a6d50c937729c8d0f02b2b62a0ee4.png)
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【推荐2】如图,在平面直角坐标系中,边长为6的正方形
在第一象限内,且
轴,点A的坐标为
,直线l经过点O和点C,将直线l沿y轴上、下平移.
![](https://img.xkw.com/dksih/QBM/2021/9/1/2798666524073984/2803528490221568/STEM/c8112d1d-02da-45d9-9c77-96bea9c1a317.png)
(1)若直线l与正方形
只有一个交点,求直线l的解析式;
(2)若直线l恰好经过正方形
的两条对角线的交点,且直线l分别与x轴,y轴交于点E,F,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcb94c4a46f48f243f98768a5ee34a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33771fc47b114df08c7ee145f9c64d75.png)
![](https://img.xkw.com/dksih/QBM/2021/9/1/2798666524073984/2803528490221568/STEM/c8112d1d-02da-45d9-9c77-96bea9c1a317.png)
(1)若直线l与正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若直线l恰好经过正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbd1c4e883518a7ac5a7517615e47e86.png)
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