如图1,直线l1:y=
x+1与l2:y=﹣2x+6相交于点C,直线l1分别与x轴、y轴相交于点A、D,直线l2分别与x轴、y轴交于点B、E.
![](https://img.xkw.com/dksih/QBM/2016/1/25/1573961738502144/1573961744990208/STEM/ad59be2c3f204f48a7894e2df1ef6201.png)
(1)填空:①线段AB= ;②点C的坐标为 ;
(2)求证:△ABC是直角三角形;
(3)直线l1向上平移几个单位后,以点A、B、E、D为顶点的图形是轴对称图形?(直接写出答案)
![](https://img.xkw.com/dksih/QBM/2016/1/25/1573961738502144/1573961744990208/STEM/55735fbd1f6b421f9fc3368e32fb6cea.png)
![](https://img.xkw.com/dksih/QBM/2016/1/25/1573961738502144/1573961744990208/STEM/ad59be2c3f204f48a7894e2df1ef6201.png)
(1)填空:①线段AB= ;②点C的坐标为 ;
(2)求证:△ABC是直角三角形;
(3)直线l1向上平移几个单位后,以点A、B、E、D为顶点的图形是轴对称图形?(直接写出答案)
更新时间:2016-12-06 04:16:16
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【推荐1】如图,在平面直角坐标系中,直线
与
轴、
轴分别交于
,
两点,与直线
相交于点
.
(1)求点
,
的坐标;
(2)求
和
的值;
(3)请直接写出方程组
的解.
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/9/8ebecfa6-39ce-4a0b-9bcd-c89af2d04f66.png?resizew=160)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)请直接写出方程组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1ce62d201a372b989e6b3d2bc6ffc.png)
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名校
【推荐2】如图所示,直线
:
,过点
,交y轴于点B,将直线
向上平移6个单位得到直线
与y轴交于点C,已知直线
:
与直线
交于点D,且过点C,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/8eafb170-4d67-4977-a15d-f4a2e98bea37.png?resizew=205)
(1)求直线
的解析式和点D的坐标;
(2)直接写出关于x的不等式
的解集;
(3)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0075e7118525dfe64bd3adec230644e6.png)
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(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
(2)直接写出关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfe5e925ec02f4591cfa0ec1370200b0.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
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【推荐1】如图1,在
中,
.点
从点
出发,以
的速度沿折线
运动,同时点
从点
出发,以
的速度沿线段BC运动.当点
到达点
时,P,Q停止运动.设点
运动的时间为
的面积为
.
与
的函数关系式,并注明自变量
的取值范围;
(2)在图2平面直角坐标系中,画出
的函数图象,并写出这个函数的一条性质:____________;
(3)若
与
的函数图象与直线
有两个交点,则
的取值范围是_____________.
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(3)若
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解答题-计算题
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【推荐2】定义
为函数
的“特征数”.如:函数
的“特征数”是
,函数
的“特征数”是
,函数
的“特征数”是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d5e3bfbc4ed92f4dd28707b21b199ce.png)
(1)将“特征数”是
的函数图象向下平移2个单位,得到一个新函数,这个新函数的解析式是____________________;
(2)在(1)中,平移前后两个函数分别与y轴交于A、B两点,与直线
分别交于D、C两点,判断以A、B、C、D四点为顶点的四边形的形状,说明理由并计算其周长.
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(1)将“特征数”是
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(2)在(1)中,平移前后两个函数分别与y轴交于A、B两点,与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db4f3ea707431e69ce7f67f20b09c5ae.png)
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【推荐1】如图,在平面直角坐标系中,O为坐标原点,点
,射线
交y轴于B,点
在射线
上,满足:
.
(1)求C的坐标;
(2)点P从点A出发沿x轴正方向运动,P的速度为2个单位长度/秒,运动时间为t秒,连接
,
的面积为s,用含t的式子表示s,并直接写出t的取值范围;
(3)在(2)的条件下,P开始运动的同时,动点Q从B出发以1个单位长度/秒的速度沿着线段
运动,
,点H在线段AB上,
,当
时,求出此时P点坐标.
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/4/62a0b846-c82d-4923-9974-219b9f35f479.png?resizew=268)
(1)求C的坐标;
(2)点P从点A出发沿x轴正方向运动,P的速度为2个单位长度/秒,运动时间为t秒,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5dd6306e00de2ae82d6605308792db.png)
(3)在(2)的条件下,P开始运动的同时,动点Q从B出发以1个单位长度/秒的速度沿着线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1372b37a2e2f043eb50ef84b72e80bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93348f56433639f3c04d876502d857cc.png)
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【推荐2】如图,直线
与x轴、y轴分别交于B、C两点.
(2)若点
是第一象限内的直线
上的一个动点,则当点A运动到什么位置(求出点A 的坐标)时,
的面积是3.
(3)在(2)成立的情况下,x轴上是否存在点P,使
是等腰三角形?若存在,求出点P的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e091cface0c4a22727634eb480562d6.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f31c3f302f5b10a40723b5b372cfc8b.png)
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(3)在(2)成立的情况下,x轴上是否存在点P,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e534b545e86c02abd2a0dc75d32b407.png)
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