已知,如图,抛物线
的顶点为
,经过抛物线上的两点
和
的直线交抛物线的对称轴于点C.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/e12010fd-3fdb-45ec-8093-fcb228476c98.png?resizew=183)
(1)求抛物线对应的函数解析式和直线
对应的函数解析式.
(2)在抛物线上A,M两点之间的部分(不包含A,M两点),是否存在点D,使得
?若存在,求出点D的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8352b2e643a7ce605334f1b0e572bfb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cac8db06f8cd81855e0da3c67388c69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/310b889d6f81610b02f7a76bc33ed220.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30825e6bb14a4ea3f935708de320c12a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/e12010fd-3fdb-45ec-8093-fcb228476c98.png?resizew=183)
(1)求抛物线对应的函数解析式和直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)在抛物线上A,M两点之间的部分(不包含A,M两点),是否存在点D,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aad0b4e226a5a134f9559645ced117e0.png)
22-23九年级上·云南·期中 查看更多[2]
更新时间:2022-11-19 15:23:31
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相似题推荐
解答题-作图题
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【推荐1】关于函数
和函数
有如下信息:①当
时,
;当
时,
.②当
时,
.根据信息解答下列问题:
(1)①求函数
的表达式;
②在平面直角坐标系
中,画出
,
的图象.
(2)设
,试求3条直线
,
,
围成的图形面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df1cbd78cc842053547d0bebb74b8638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe8560a14678834686b762c583025d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac67e9a909472ab852d38d2ec66a1e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200849ce71f53c0321506e27de437b8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f99df1a7b58018125b99578b779342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eecb04a10139b28813d3d1fb55a1fa3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52374559f33a0f6a2fc82790fb22fc65.png)
(1)①求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
②在平面直角坐标系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.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/editorImg/2023/7/4/03da31f3-4dee-4c90-97fd-1c2a6c82aeaf.png?resizew=274)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41d24ef73c774750838df6f6363c061b.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/9314bd1d7a6e070f4f2428f9a321804e.png)
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【推荐2】如图,点
,
在反比例函数图象上,
轴于点D,
轴于点C,
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/47f47685-988d-4cf5-9996-7fb69e6f70f9.png?resizew=142)
(1)求出反比例函数的表达式及直线
的函数表达式;
(2)在线段
上是否存在一点E,使
的面积等于10?若存在,求出点E的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1a4ac1bb7b457f46dea41ba13b9f0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d572e5292916663894daeb435b5230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5d3a0273d1f3046dfad2086d0df56c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b45db8dd8768994af51206565379fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a9359141eaf878cd0813e2ddb7330f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/47f47685-988d-4cf5-9996-7fb69e6f70f9.png?resizew=142)
(1)求出反比例函数的表达式及直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
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【推荐1】如图,已知一次函数
的图像与x轴交于点A
,交y轴于点B.
(1)求m的值与点B的坐标;
(2)若点C在y轴上,且使得△ABC的面积为12,请求出点C的坐标.
(3)若点P在x轴上,且△ABP为等腰三角形,请直接 写出点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6312a244f3f9b2d62359bb8d0a86fe87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d5b2fee25cf53520f57c017e90e41f.png)
(1)求m的值与点B的坐标;
(2)若点C在y轴上,且使得△ABC的面积为12,请求出点C的坐标.
(3)若点P在x轴上,且△ABP为等腰三角形,请
![](https://img.xkw.com/dksih/QBM/2018/1/31/1872228360511488/1872856603746304/STEM/87cd87de91e547c484e7d6d65f80a83d.png?resizew=182)
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【推荐2】已知直线
与
轴交于点A(-6,0),与
轴交于点B.
(1)求b的值;
(2)把△AOB绕原点O顺时针旋转90°后,点A落在
轴的
处,点B落在
轴的
处;
①求直线
的函数关系式;
②设直线AB与直线
交于点C,长方形PQMN是△
的内接长方形,其中点P,Q在线段
上,点M在线段
上,点N在线段AC上.若长方形PQMN的两条邻边的比为1∶2,试求长方形PQMN的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87490be8d0cdb7bc6c39d1a37f3bc335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)求b的值;
(2)把△AOB绕原点O顺时针旋转90°后,点A落在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
①求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
②设直线AB与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d3568dd80dbfabbd56643668dc4b764.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943712a5e96b16cc15d775cc4687237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/020ebe1219437129358b986eb9e70bbf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/5947e0a9-62e9-44cc-80fc-a81b3dc585e1.png?resizew=264)
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【推荐1】在平面直角坐标系中,二次函数图象的表达式
,其中
.
(1)若此函数图象过点
,求这个二次函数的表达式;
(2)函数
,若
为此二次函数图象上的两个不同点,
①若
,则
,试求a的值;
②当
,对任意的
,
都有
,试求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460fa9627dcfadf8745c205a717d2f27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
(1)若此函数图象过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76095b03d243fead89a6493614e4b68a.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31123f422904d98cb4c6b1fa31c4e83c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5c31073e583bb6f263bcbea40288f93.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/089c3608df214a5bc8a25d47550d2927.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1292c47f62023b747f1a4bd615c75284.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74ab1d22b253fe4c1db9a418fd2c9c93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f99df1a7b58018125b99578b779342.png)
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【推荐2】如图,抛物线
与
轴交于
、
两点,与
轴交于点
.
(1)求抛物线的解析式;
(2)若点
是抛物线上的一点,当
的面积为10时,求点
的坐标;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358e2987096a67189bcc2a642da39524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b8c639c851e0044ee22020324c5570.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7480deb6fedddf1fb05d8cdb24be1703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/25/9f16220f-5a2e-4d2a-b50e-468da2afe1fd.png?resizew=99)
(1)求抛物线的解析式;
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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【推荐1】如图,抛物线
,过
,B(3,0),C(0,3)三点,其中D为顶点,对称轴为直线DE.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/21/4fb7dceb-7eb2-4080-9055-f088314221f7.png?resizew=234)
(1)求抛物线的解析式
(2)若点M是抛物线在BD右上方的一点,设点M的横坐标为m,△MBD面积为S.S是否有最大值?若有,请求出最大值及M的坐标,若无,请说明理由.
(3)在抛物线的对称轴上找一点P,使△PAC是等腰三角形,请直接写出点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ac8b0eb4aa1cbe23125aa2f6d35337c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d486ff341497f74642680bcd1634932d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/21/4fb7dceb-7eb2-4080-9055-f088314221f7.png?resizew=234)
(1)求抛物线的解析式
(2)若点M是抛物线在BD右上方的一点,设点M的横坐标为m,△MBD面积为S.S是否有最大值?若有,请求出最大值及M的坐标,若无,请说明理由.
(3)在抛物线的对称轴上找一点P,使△PAC是等腰三角形,请直接写出点P的坐标.
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【推荐2】直线y=2x+3与抛物线y=ax2交于A、B两点,已知点A的横坐标为3.
(1)求A、B两点的坐标及抛物线的解析式;
(2)O为坐标原点,求△AOB的面积.
(1)求A、B两点的坐标及抛物线的解析式;
(2)O为坐标原点,求△AOB的面积.
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