已知函数y
,请根据已学知识探究该函数的图象和性质.
(1)列表,写出表中a、b,c的值:a= ,b= ,c= ;
(2)描点,连线:在如图的平面直角坐标系中画出该函数的图象,并写出该函数的一条性质: ;
(3)已知函数y=x﹣1的图象如图所示,结合你所画的函数图象,直接写出不等式
x﹣1的解集: .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f0068d33c1fd5729a4af31ddfeab893.png)
(1)列表,写出表中a、b,c的值:a= ,b= ,c= ;
x | … | ﹣3 | ﹣2 | ﹣1 | 0 | 1 | 2 | 3 | … |
y | … | 0.5 | a | 2.5 | b | 2.5 | 1 | c | … |
(3)已知函数y=x﹣1的图象如图所示,结合你所画的函数图象,直接写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae0d87fe4044ccb73195e1253178d494.png)
![](https://img.xkw.com/dksih/QBM/2020/6/16/2485674981621760/2491812752023552/STEM/bdf9a355b6e04f57822d6a91654cd6e6.png?resizew=179)
更新时间:2020-06-24 23:08:55
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相似题推荐
解答题-作图题
|
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【推荐1】在我们学习函数的过程中,经历了“确定函数的解析式一利用函数图象研究其性质”的学习过程,在画函数图象时,我们可以通过描点或平移的方法画出一个函数的大致图象.同时,我们也学习了绝对值的意义![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8548e4e6dc3cd43cd36d2993a6360002.png)
阳阳结合上面的学习过程,对函数
的图象与性质进行了探究.
的表达式:当
时,
,当
时,
;
② 在平面直角坐标系中,画出此函数的图象;
(2)函数
的图象可由
的图象向上平移1个单位得到;
① 当
时,
的取值范围是 ;
② 当
时,x的取值范围是 ;
③ 当
时(其中m,n为实数,
),自变量x的取值范围是
,求n的值及m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8548e4e6dc3cd43cd36d2993a6360002.png)
阳阳结合上面的学习过程,对函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0582d781c00ee7717019043e0d90c394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0582d781c00ee7717019043e0d90c394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b11b1815958b460efd19013812412b37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6898d181faf9e6cc9957f3102f8d3d73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/871e95285eb71fb8ee7f57ed3339878e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6898d181faf9e6cc9957f3102f8d3d73.png)
② 在平面直角坐标系中,画出此函数的图象;
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/909e4c954cabaa16025454ec1f05b899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0582d781c00ee7717019043e0d90c394.png)
① 当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b4aa79b0a0f0d6abfae1e61edfe5634.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998cf61f4b1bc52ecfdc84fbc0e25550.png)
② 当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b701e6543bdcdb25857209f65127b45.png)
③ 当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ead78bdfb0f775e3571d7ced9d761cc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1dc691018f939156edb2ec1a91fca8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8219a206e61155232a56426e760c7e37.png)
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解答题-作图题
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名校
【推荐2】有这样一个问题:探究函数y=
的图象与性质.小彤根据学习函数的经验,对函数y=
的图象与性质进行了探究.
下面是小彤探究的过程,请补充完整:
(1)函数y=
的自变量x的取值范围是 ;
(2)下表是y与x的几组对应值:
则m的值为 ;
(3)如图所示,在平面直角坐标系xOy中,描出了以上表中各对对应值为坐标的点,根据描出的点,画出了图象的一部分,请根据剩余的点补全此函数的图象;
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/12/fb42a3b4-1749-4712-b8de-204c6d577cf7.png?resizew=312)
(4)观察图象,写出该函数的一条性质 ;
(5)若函数y=
的图象上有三个点A(x1,y1)、B(x2,y2)、C(x3,y3),且x1<3<x2<x3,则y1、y2、y3之间的大小关系为 ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eadc0b5d2b3986d472a3a947ff50f82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eadc0b5d2b3986d472a3a947ff50f82.png)
下面是小彤探究的过程,请补充完整:
(1)函数y=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eadc0b5d2b3986d472a3a947ff50f82.png)
(2)下表是y与x的几组对应值:
x | … | ﹣2 | ﹣1 | 0 | 1 | 2 | 4 | 5 | 6 | 7 | 8 | … |
y | … | ![]() | m | ![]() | 0 | ﹣1 | 3 | 2 | ![]() | ![]() | ![]() | … |
(3)如图所示,在平面直角坐标系xOy中,描出了以上表中各对对应值为坐标的点,根据描出的点,画出了图象的一部分,请根据剩余的点补全此函数的图象;
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/12/fb42a3b4-1749-4712-b8de-204c6d577cf7.png?resizew=312)
(4)观察图象,写出该函数的一条性质 ;
(5)若函数y=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eadc0b5d2b3986d472a3a947ff50f82.png)
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解答题-作图题
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【推荐3】如图,点
是半圆
中
上一动点,连接
,作
,交弦
于点
.已知
,设
,
两点间的距离为
,
,
两点间的距离为
,
,
两点间的距离为
.(当点
与点
重合时,
,
的值为
.
小元根据学习函数的经验,分别对函数
随自变量
的变化而变化的规律进行了探究.
下面是小元的探究过程,请补充完整:
(1)按照下表中自变量
的值进行取点、画图、测量,分别得到了
与
的几组对应值;
经测量
的值是 (保留一位小数).
(2)在同一平面直角坐标系
中,描出补全后的表中各组数值所对应的点
,
,并画出函数
,
的图象;
![](https://img.xkw.com/dksih/QBM/2020/4/30/2452698070581248/2454328277999616/STEM/aa5b8cf26d0041eca3d229a7f50d97e2.png?resizew=207)
(3)结合函数图象,解决问题:当
为等腰三角形时,
的长度约为
(保留一位小数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62d372c99450c4fbbbb0f397e5ecb82c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f53d8d1de63ce32193e012d7dcbe3d.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/82cf997be91eba5aa57c308a3461c799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d19f6c71e82001bb106b6f1389046b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1106faf20d6bcfc3c7534fe7a425733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1032dbdde50ce13878065b67165c0052.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/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72fb378d6bf91902efa15881985c5e69.png)
小元根据学习函数的经验,分别对函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
下面是小元的探究过程,请补充完整:
(1)按照下表中自变量
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
0 | 1 | 2 | 3 | 4 | 5 | 6 | |
0 | 1.21 | 2.09 | 2.99 | 2.82 | 0 | ||
0 | 0.87 | 1.57 | 2.20 | 2.83 | 3.61 | 6 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)在同一平面直角坐标系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed83c6a94190157997a018e1435aa2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39be8bf07c86588e611163ba9da99b71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://img.xkw.com/dksih/QBM/2020/4/30/2452698070581248/2454328277999616/STEM/aa5b8cf26d0041eca3d229a7f50d97e2.png?resizew=207)
(3)结合函数图象,解决问题:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b280088a8f97b52c2145bc709434e7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97153bc3d02dfb38ee046487a8037a41.png)
![](https://img.xkw.com/dksih/QBM/2020/4/30/2452698070581248/2454328277999616/STEM/8101f89140664c718e628684e15d1c43.png?resizew=175)
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解答题-问答题
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较难
(0.4)
【推荐1】如图,一次函数
的图像与
轴和
轴分别交于
两点,与反比例函数
的图像分别交于
两点.
![](https://img.xkw.com/dksih/QBM/2023/1/9/3149216647061504/3156399896977408/STEM/2ff230a828e9460aa4dffaeeb514a7b0.png?resizew=219)
(1)动点
在线段
上(不与点
重合),过点
作
轴和
轴的垂线,垂足为
.当矩形
的面积为2时,求出点
的位置;
(2)在
轴上是否存在点
,使得以
为顶点的三角形与
相似?若存在,求出点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e235d7dd12f948f5ffb2e5afddc95612.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/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c6a67f845cdcdfb0cd71af3fdb59aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c29a7e8eea08197bf53164a560bee58.png)
![](https://img.xkw.com/dksih/QBM/2023/1/9/3149216647061504/3156399896977408/STEM/2ff230a828e9460aa4dffaeeb514a7b0.png?resizew=219)
(1)动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c40b8789cc8d81b3cf64f0b318ab982a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)在
![](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/00045940432a531a8f07034032d9248d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7ffcd1925a2b1259221c6a476152f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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解答题-证明题
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【推荐2】已知:如图所示,在平面直角坐标系中,函数
(
,
是常数)的图象经过点
、点
,其中
,直线
交
轴于点
.过点
作
轴的垂线,垂足为
,过点
作
轴的垂线,垂足为
,
与
相交于点
,连接
.
(1)若
的面积为
,求点
的坐标;
(2)求证:四边形
为平行四边形;
(3)若
,求直线
的函数解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/948bd86dbd7d79decf75e500ffb48d79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/959f019ced15fee01049607a897aae83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5022abc6afd4deff13845419fa38312e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f8d432eb46dcd99661f88366ab306fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c75402202a38abe750ec3461ea71ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/845502f5e730025627d157f7e6120017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf6101c529b7868bc1c2fd46aca16bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2db885ad7da56625153d3bceafdb507.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c59076e80b15755ef630fd5f40d1f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c2bb7be2e9410a16502268fd4c67be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9af8c3fbdb748fd11e2423de063616.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f015ed8e497b4394053ddd19683a98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c14c6709d2a04863cacdee618b20613e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2db885ad7da56625153d3bceafdb507.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7909220d1db380634534190b662ee0a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a3a3d168a18401e47576f70a692e87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6904f78bb6884bf09adbe32f5df197b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8f1796428c2600bbbdff746b0311583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c3f079afafe37035b5ee0a3c0be7c1c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06586df4b4f439b97323545caa1c26c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c14c6709d2a04863cacdee618b20613e.png)
(2)求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935dcb4461f3d02cb95d95714cb1d24.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a666908bc78e3b0901b816e172aee1b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf6101c529b7868bc1c2fd46aca16bc.png)
![](https://img.xkw.com/dksih/QBM/2018/12/24/2103630807498752/2105229549797376/STEM/b80ec93991ad4e6a9f8ada9238ef7237.png?resizew=111)
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