如图1,在
中,
,
,
,点
,
分别在
,
上,且满足
,
,点
从
出发,沿着折线
运动,到达点
时停止运动.设点
运动的路程为
,连接
,记
的面积为
,请解答下列问题:
关于
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
的函数图象,并写出函数
的一条性质;
(3)结合函数图象,若直线
与函数图象只有一个交点,则k的取值范围是______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d9142db4dd2ef151bf3d4a63afb61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf95741bc36eabfd36db4ed4e8282804.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e4814565292192e40bd86a10ee7b661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86786587c840c1d58ba04369cab75ff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b7e2ae7ffaaca73a9fa2f11d517ff93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365822bd3945e6a3e871ca979c84cc12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7fbd6b9f85c086ac95562fe45e8d969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)如图2,在给定的平面直角坐标系中,画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(3)结合函数图象,若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5d7c37dbfd6e9133ca40e7ce37a1e2d.png)
更新时间:2024-03-18 08:14:43
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】已知动点
以
的速度沿图①的边框按
的路径运动,
的面积
随时间
的变化如图②,若
,试回答下列问题:
![](https://img.xkw.com/dksih/QBM/2020/8/17/2530014474354688/2530431493210112/STEM/d721c3a7007c4dc9b42b4dce0406a6fe.png?resizew=374)
(1)图①中
长是多少?
(2)图②中
是多少?
(3)图①的图形的面积是多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3683bae59bc5de0cccc8011815c327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1950e3224931a713a10c9c32740ddd2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2694c32ca1e120e988012b7ecd74f625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1138e82e53661e80f00d05bdcd4a4747.png)
![](https://img.xkw.com/dksih/QBM/2020/8/17/2530014474354688/2530431493210112/STEM/d721c3a7007c4dc9b42b4dce0406a6fe.png?resizew=374)
(1)图①中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)图②中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)图①的图形的面积是多少?
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
名校
【推荐2】阅读理解:如图,Rt△AB中,
,AC=BC,AB= 4cm.动点D沿着A→C→B的方向从A点运动到B点.DE
AB,垂足为E.设AE长为
cm,BD长为
cm(当D与A重 合时,
= 4;当D与B重合时
=0).小云根据学习函数的经验,对函数
随自变量
的变化而变化的规律进行了探究.下面是小云的探究过程,请补充完整:
![](https://img.xkw.com/dksih/QBM/2020/3/18/2422029450625024/2422738414796800/STEM/f96bd05ef30b430e82301a2d1dc392f8.png?resizew=177)
(1)通过取点、画图、测量,得到了
与
的几组值,如下表:
补全上面表格,要求结果保留一位小数.则
__________;
(2)在下面的网格中建立平面直角坐标系,描出以补全后的表中各对对应值为坐标的点,画出该函数的图象;
![](https://img.xkw.com/dksih/QBM/2020/3/18/2422029450625024/2422738414796800/STEM/0eef7ec702b04385a34a04d950339a0d.png?resizew=183)
(3)结合画出的函数图象,解决问题:当DB=AE时,AE的长度约为 cm.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/2020/3/18/2422029450625024/2422738414796800/STEM/f96bd05ef30b430e82301a2d1dc392f8.png?resizew=177)
(1)通过取点、画图、测量,得到了
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![]() | 0 | 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 |
![]() | 4 | 3.5 | 3.2 | ![]() | 2.8 | 2.1 | 1.4 | 0.7 | 0 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae278be44b0bc72d1da5563b8ffc7c2.png)
(2)在下面的网格中建立平面直角坐标系,描出以补全后的表中各对对应值为坐标的点,画出该函数的图象;
![](https://img.xkw.com/dksih/QBM/2020/3/18/2422029450625024/2422738414796800/STEM/0eef7ec702b04385a34a04d950339a0d.png?resizew=183)
(3)结合画出的函数图象,解决问题:当DB=AE时,AE的长度约为 cm.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】如图,正比例函数
的图像与一次函数
的图像交于点
,一次函数图像经过点
,与y轴的交点为D,与x轴的交点为C.
(1)求一次函数表达式;
(2)求D点的坐标;
(3)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4a2b4c212450b2a0f77e042c8da13dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/627b7b7b7ea0bbf3ddab5495b202fef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d3bfa155ad67018da4d65815c5e5b8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/16/661f0494-3dda-44d0-8d2e-75ae5a37e995.png?resizew=168)
(1)求一次函数表达式;
(2)求D点的坐标;
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a5b7ba12696a28104d8e7d70f85a917.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图,抛物线
与x轴分别交于点A,点B,与y轴交于点C,点D为抛物线的顶点,连接
,
.若点
,点
,点
.点P为线段
上一点,过点P作
,交
于点Q.
(1)求抛物线的表达式;
(2)当
的面积最大时,求点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8352b2e643a7ce605334f1b0e572bfb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0929421a6188c3122442866b0b85a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ef03f452410ab19c6246567c427178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c052d7af2f98d95bac8725b608fba0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8302ad6e9edc432e107d946086037ec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/6/5eb377fa-ae4a-4e34-99be-69f213e66871.png?resizew=137)
(1)求抛物线的表达式;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecd3355d3bee7e168af3bec0662b7dd8.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
真题
【推荐1】如图,在等腰Rt△ABC中,∠C=90°,正方形DEFG的顶点D地边AC上,点E、F在边AB上,点G在边BC上.
![](https://img.xkw.com/dksih/QBM/2013/9/12/1573682784567296/1573682790653952/STEM/b8e6ec0aae8f4fc3b22fbe2f98558f3d.png)
(1)求证:△ADE≌△BGF;
(2)若正方形DEFG的面积为16cm
,求AC的长.
![](https://img.xkw.com/dksih/QBM/2013/9/12/1573682784567296/1573682790653952/STEM/b8e6ec0aae8f4fc3b22fbe2f98558f3d.png)
(1)求证:△ADE≌△BGF;
(2)若正方形DEFG的面积为16cm
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921ef5abce73648e3834140df9a72aa8.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,
是
的直径,点
在
上,
,过点
作直线
,交
的延长线于
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/6c005e4c-b14f-436d-a824-017859cbcd30.png?resizew=167)
(1)求证:
是
的切线;
(2)如果
的半径为
,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/d3a51949f48ee8cf746851ba779b078e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d68f2d6003a4bcd1b0b0307611970fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b80e036e0088b70326e44aca46ac648.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/6c005e4c-b14f-436d-a824-017859cbcd30.png?resizew=167)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ce0313dca1bec63ef3cf109b572c2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】综合与实践
问题提出
(1)如图1,在
中,
,点
分别在
边上,且
,则
与
的大小关系是 .
操作感悟
(2)如图2,将
绕点
顺时针旋转,连接
,猜想
与
的大小关系和位置关系,并证明你的结论.
延伸探究
(3)如图2,若
,在
绕点
顺时针旋转的过程中,求
面积的最大值.
问题提出
(1)如图1,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75b1c0789fff549e1db4510cc3494fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3648c864f9f58da1dbb166fee84cfeaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5dc62e10004e73908091338362917da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c436f108fd4921dae15ecff19270237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
操作感悟
(2)如图2,将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8518c9bd112f86afb26eec99b01934d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
延伸探究
(3)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00b243f607be47bda30d81605f2bafa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,A,B,C三点在
上,直径
平分
,过点D作
交弦
于点E,在
的延长线上取一点F,使得
.
是
的切线;
(2)连接
交
于点M,若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c0aa4c793921fdaa5d430cb90d78ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9a9618018d717926540d1452f76e44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f341b98caabf99bc683ce8407068735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1535c0b92b25826ee65b6edd311ebf46.png)
您最近一年使用:0次