如图,在
中,
,
,
,动点D以每秒1个单位长度的速度沿折线
方向运动,当点D运动到点C时停止运动,设运动时间为t秒,
的面积为y.
(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)结合函数图象,直接写出
的面积为4时t的值(近似值精确到0.1,误差不超过0.2).
![](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/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd66776565f049eb453c14fcaf79234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.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)结合函数图象,直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
更新时间:2024-04-20 10:11:49
|
相似题推荐
解答题-作图题
|
适中
(0.65)
【推荐1】有这样一个问题:探究函数
的图象与性质.
乐乐根据学习一次函数的经验,对函数
的图象与性质进行了探究.
下面是乐乐的探究过程,请补充完整:
(1)下表是x与y的几组对应值
m的值为____________;
(2)在如图所示的平面直角坐标系中,描出上表中各组对应值为坐标的点,并画出该函数图象;
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/e086b94b-0252-4fde-abfc-76cf7ecacb42.png?resizew=304)
(3)结合函数图象,写出该函数的两条性质.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5687a96dc4a021018cee8b1737951e2e.png)
乐乐根据学习一次函数的经验,对函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5687a96dc4a021018cee8b1737951e2e.png)
下面是乐乐的探究过程,请补充完整:
(1)下表是x与y的几组对应值
x | … | 0 | 1 | 2 | 3 | 4 | … | |||
y | … | 2 | m | 0 | 0 | 1 | … |
(2)在如图所示的平面直角坐标系中,描出上表中各组对应值为坐标的点,并画出该函数图象;
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/e086b94b-0252-4fde-abfc-76cf7ecacb42.png?resizew=304)
(3)结合函数图象,写出该函数的两条性质.
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解答题-作图题
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适中
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【推荐2】问题:探究函数
的图象与性质.
小华根据学习函数的经验,对函数
的图象与性质进行了探究.
下面是小华的探究过程,请补充完整:
(1)在函数
中,自变量
可以是任意实数.
(2)下表是
与
的几组对应值.
①
__________.
②若
,
为该函数图象上不同的两点,则
__________.
(3)如下图,在平面直角坐标系
中,描出以上表中各对对应值为坐标的点.并根据描出的点,画出该函数的图象.
根据函数图象可得:
①该函数的最小值为_________.
②已知直线
与函数
的图象交于
、
两点,当
时
的取值范围是__________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c0a01e5c041437100c944bc111a1d3.png)
小华根据学习函数的经验,对函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c0a01e5c041437100c944bc111a1d3.png)
下面是小华的探究过程,请补充完整:
(1)在函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c0a01e5c041437100c944bc111a1d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)下表是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe176444c17641c86476269ce5cbddc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ae7973d817051778903ba175c1c054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
(3)如下图,在平面直角坐标系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
根据函数图象可得:
①该函数的最小值为_________.
②已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa5beb85a5265082832b49948c53c039.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c0a01e5c041437100c944bc111a1d3.png)
![](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/268d2302ed119a6aafe9a3066c0bda54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/915fecfb-0a5c-4441-89ce-3ce6dff8909f.png?resizew=199)
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解答题-问答题
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名校
【推荐1】已知动点
从点
出发沿图1的边框(边框拐角处都互相垂直)按
的路径移动,相应的
的面积
关于移动路程
的关系图象如图2,若
,根据图象信息回答下列问题:
(1)图1中
___________
.
(2)图2中
___________;
___________.
(3)当
的面积
为2时,求对应的
的值.
![](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/f557ea9ccc1d381f3dfbb7d52048e26c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4e4adb57bb8c217187e1f78eba3829b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42ee37610ca2a57da2cd74c015c38dd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183c5b629fe2415a9192473586c8f6ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c5292154a61337d9614c5733603115.png)
(1)图1中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97153bc3d02dfb38ee046487a8037a41.png)
(2)图2中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4e4adb57bb8c217187e1f78eba3829b.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/2020/3/21/2431351466360832/2431650642952193/STEM/0e1aeedbb0f94d9a96c384647e04a82f.png?resizew=180)
![](https://img.xkw.com/dksih/QBM/2020/3/21/2431351466360832/2431650642952193/STEM/e553cb62a2914af6860abbddba4bcbb4.png?resizew=250)
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解答题-应用题
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名校
【推荐2】如图①,在四边形
中,
,
,
.动点P从点
出发,沿
的方向以每秒
的速度匀速运动,在整个运动过程中,
的面积S与运动时间
的函数图象如图②所示.
__________;
(2)求点P在
段上运动时,
的面积S与运动时间
的函数表达式;
(3)当
的面积为
时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d9142db4dd2ef151bf3d4a63afb61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56ee81929c987732fcb379802eeef7a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd23cf0ee5cd9a31bd9923c03e2b159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048b61a5fb5f420c6d7de88db5bc3aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
(2)求点P在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9202af84bc055b58bd51fae5e3272283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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解答题-问答题
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(0.65)
【推荐3】如图①,在矩形 ABCD中,AB=30cm,BC=60cm.点P从点A出发,沿A→B→C→D路线向点D匀速运动,到达点D后停止;点Q从点D出发,沿 D→C→B→A路线向点A匀速运动,到达点A后停止.若点P、Q同时出发,在运动过程中,Q点停留了1s,图②是P、Q两点在折线AB→BC→CD上相距的路程S(cm)与时间t(s)之间的函数关系图象.
(1)请解释图中点H的实际意义?
(2)求P、Q两点的运动速度;
(3)当时间t为何值时,△PCQ为等腰三角形?请直接写出t的值.
(1)请解释图中点H的实际意义?
(2)求P、Q两点的运动速度;
(3)当时间t为何值时,△PCQ为等腰三角形?请直接写出t的值.
![](https://img.xkw.com/dksih/QBM/2019/5/21/2208311100006400/2210031359950849/STEM/428da10728e74466994c7b2fbfd64251.png?resizew=330)
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解答题-问答题
|
适中
(0.65)
【推荐1】如图,在等腰
中,
,
,过点
作
于点
.
的长;
(2)若点
是边
的中点,连接
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59fe75f967e8915c9124a5d4ac420a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a457feaa808f3cd3f3b7f354a284440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a8058ffca595c512444b2bab098ad0a.png)
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解答题-证明题
|
适中
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【推荐2】如图,已知平行四边形
中,
,以
为直径作
,
恰好经过点B.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/5291e635-89ed-48d1-8a09-67491dfd9c39.png?resizew=232)
(1)求证:
为
的切线;
(2)E为
上一点,
与
交于点M,连接
并延长,交
延长线于点F,若
,
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d35d8d8bb0dc17f2f86fe5b230a2b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/5291e635-89ed-48d1-8a09-67491dfd9c39.png?resizew=232)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)E为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4771d643a2787d9315f9c8f94c2462a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
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