在平面直角坐标系
中,
如图所示,点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/492ad150-c83e-4e9b-9926-9057c90368af.png?resizew=169)
(1)求直线
的解析式;
(2)求
的面积;
(3)一次函数
(
为常数).
①求证:一次函数
的图象一定经过点
;
②若一次函数
的图象与线段
有交点,直接写出
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9301f5c1c4d6b9249e06a9e1ee711df9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/492ad150-c83e-4e9b-9926-9057c90368af.png?resizew=169)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
(3)一次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e84a643d5b9cd34cef768c2bf2991de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
①求证:一次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e84a643d5b9cd34cef768c2bf2991de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
②若一次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e84a643d5b9cd34cef768c2bf2991de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
19-20八年级上·安徽合肥·期末 查看更多[4]
更新时间:2020-02-04 21:20:50
|
相似题推荐
解答题-问答题
|
困难
(0.15)
【推荐1】如图,在平面直角坐标系中,抛物线
与
轴交于点
和点
(点A在点
的左侧),与
轴交于点
,经过点A的直线与抛物线交于点
,与
轴交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/27/a10e56b8-8391-4193-975d-48a7f725f7d5.png?resizew=395)
(1)求直线
的表达式;
(2)求抛物线的表达式和顶点
的坐标;
(3)点
是
轴下方抛物线上的一个动点,使
的面积为
,请直接写出点
的坐标为______;
(4)点
是线段
上一动点,点
是线段
上一动点,且
,请直接写出
的最小值为______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39dd70f6ef25a564c638be6c576585ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/993769b494e12c21dff0ee7c53a4a49f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3676356dfb7d330635e973623eefc7a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/27/a10e56b8-8391-4193-975d-48a7f725f7d5.png?resizew=395)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)求抛物线的表达式和顶点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441dec590b47adc3678a291a3ec89a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29a44d321ae2abfc4e566933a92637d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(4)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3efdc45b50e82162f4fc35ddf2cecd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34101f186022b16edbd8e6a7aa38ef2f.png)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
【推荐2】如图,已知Rt
ABC中,∠BAC=30°,∠C=90°,A点坐标为(﹣1,0),B点坐标为(3,0),抛物线y1的顶点记为Q,且经过
ABC的三个顶点A、B、C(点A在点B左侧,点C在x轴下方).抛物线y2也交x轴于点A、B,其顶点为P.
(1)求C点的坐标和抛物线y1的顶点Q的坐标.
(2)当BP+CP的值最小时,求抛物线y2的解析式.
(3)设点M是抛物线y1上的一个动点,且位于其对称轴的右侧.若
PQM是与
ABC相似的三角形,求抛物线y2的顶点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
(1)求C点的坐标和抛物线y1的顶点Q的坐标.
(2)当BP+CP的值最小时,求抛物线y2的解析式.
(3)设点M是抛物线y1上的一个动点,且位于其对称轴的右侧.若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/21/5db53e15-bd12-4e25-a755-b9bdf7cc20d1.png?resizew=358)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
名校
【推荐1】在练习“一次函数”复习题时,我们发现了一种新的函数:“绝对值函数”:
,请类比探究函数
.
(1)当
时,
______,当
时,
______
用含
的代数式表示
;
(2)过
轴上的动点
,其中
,作平行于
轴的直线,分别与函数
的图像相交于
、
两点
点
在点
的左侧
,若
,求
的值;
(3)若一次函数
图像与函数
的图像相交于
、
两点,
,直接写出
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10306d2741184823a1784f3f26c73343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c33b41fd85266662898b6b40df44527b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ccaa6e503b61e9ae78d8439cba2e328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/296c31eaede57efe89ffb83f02ad4622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52fb51c831740d9fe307c03537080448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c33b41fd85266662898b6b40df44527b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e0cdfb6d592897c6485ce1741677846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若一次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87490be8d0cdb7bc6c39d1a37f3bc335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c33b41fd85266662898b6b40df44527b.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/9bf8e1c3f6e76b1b418556c07652612c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
【推荐2】已知函数
,其中m为常数,该函数的图象记为G.
(1)当
时,若点
在图象G上,求n的值;
(2)当
时,若函数最大值与最小值的差为
,求m的值;
(3)已知点
,
,
,当图象G与
有两个公共点时,直接写出m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c5fb700e82d282648f9ffb302a7ef9.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0db2c49919467a2e14540f2aabd05cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa45c18877e0af891f6420aa7d786789.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715c90c0e4bbc3e89e38754f4a1fb1df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(3)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9112bdf193400278a319ebd904d0f73e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebf09886d78142f483e163e0919dc50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/999c851d94341eba8d8558c7575ebb3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
名校
【推荐1】如图,在平面直角坐标系中,直线
与直线
交于点
,交双曲线
于点
、
,点
为直线
上一点,其横坐标为
.
(1)求
的值;
(2)若
的面积为2,求
的值;
(3)点
为平面直角坐标系内一点,当
时,四边形
为矩形,求反比例函数的关系式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9bd144e0e96e4236a14523e0729cacb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c59f0e35b7ae5206e45878934482b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9bd144e0e96e4236a14523e0729cacb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/1/f290a44b-d6a5-4bee-b396-859acdadaf33.png?resizew=135)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b4dcc093218443f71a046b6df94bbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99f0c74c4b809ea85244ecfd03467dfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/108b32f73cc6d455480d74a40e9549e1.png)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
【推荐2】在平面直角坐标系中,点
,
均在
轴上,点
在第一象限,直线
上所有点的坐标
都是二元一次方程
的解,直线
上所有点的坐标
都是一元一次方程
的解.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/21/32dcfa55-efd3-49e5-a1e5-95c768bbee3f.png?resizew=311)
(1)求
点的坐标时,小明是这样想的:先设
点坐标为
,因为
点在直线
上,所以
是方程
的解;又因为
点在直线
上,所以
也是方程
的解,从而
,
满足
,据此可求出
点坐标为______.再求出
点坐标为______;
点坐标为______.(均直接写出结果)
(2)若线段
上存在一点
,使
(
为原点),求
点坐标
(3)点
是坐标平面内的动点,若满足
,求
的取值范围.
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b4cf4e41a43480d6a0cb87f24dd9200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6894cf0c9e9f485415fc284deb79850.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/21/32dcfa55-efd3-49e5-a1e5-95c768bbee3f.png?resizew=311)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddedc059a46e0c253c6a579123d26bca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddedc059a46e0c253c6a579123d26bca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b4cf4e41a43480d6a0cb87f24dd9200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddedc059a46e0c253c6a579123d26bca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6894cf0c9e9f485415fc284deb79850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/997e1fdfa479cc369182a832479a3161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d06eb89d440d3c691856cb73fc0d791b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84f0c795b8cfb1896240e789da326072.png)
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