已知一次函数
的图象与反比例函数
的图象相交于点
,
.
(2)过点A作直线
,交y轴于点D,交第三象限内的反比例函数图象于点C,连接
,如果
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/646e11d5bff57e56ce82c2339f2d71ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26820332294b112e27b8d7ffa4ae8631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b35ee61ee35ce9f7c2f2002c02fb0a4.png)
(2)过点A作直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f3ba8b214034c287276f4966069d95e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
2023·上海杨浦·二模 查看更多[6]
2023年上海市杨浦区中考二模数学试卷2023年北京市石景山区京源学校中考数学练兵试卷(4月份) (已下线)黄金卷08-【赢在中考·黄金8卷】备战2023年中考数学全真模拟卷(上海专用)(已下线)专题10 反比例函数及其应用(共56题)-学易金卷:5年(2019-2023)中考1年模拟数学真题分项汇编(北京专用)上海市杨浦区2022-2023学年九年级下学期月考数学试题(已下线)重难点02 一次函数与反比例函数综合题(4大题型+满分技巧+限时分层检测)-2024年中考数学【热点·重点·难点】专练(上海专用)
更新时间:2023-04-21 21:19:21
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相似题推荐
解答题-问答题
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【推荐1】如图所示,直线AM∥BN,∠MAB与∠NBA的平分线交于点C,过点C作一条直线l与两条直线MA,NB分别相交于点D,E.
![](https://img.xkw.com/dksih/QBM/2019/9/24/2297726903164928/2303460435107840/STEM/ece530882f834758bc1dc07ee868dee3.png?resizew=235)
(1)如图1,当直线l与直线MA垂直时,试探究AB,AD,BE之间的数量关系并说明理由;
(2)如图2,当直线l与直线MA不垂直,且交点D,E在AB的异侧时,则(1)的结论还成立吗?若成立,请说明理由;若不成立,请直接写出AB,AD,BE之间的数量关系.
![](https://img.xkw.com/dksih/QBM/2019/9/24/2297726903164928/2303460435107840/STEM/ece530882f834758bc1dc07ee868dee3.png?resizew=235)
(1)如图1,当直线l与直线MA垂直时,试探究AB,AD,BE之间的数量关系并说明理由;
(2)如图2,当直线l与直线MA不垂直,且交点D,E在AB的异侧时,则(1)的结论还成立吗?若成立,请说明理由;若不成立,请直接写出AB,AD,BE之间的数量关系.
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【推荐2】如图,
是等腰三角形,
,以
为直径的
与
交于点
,
,垂足为
,
的延长线与
的延长线交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/27/6aa92a41-b0ba-453f-b219-4e0386b1efad.png?resizew=144)
(1)求证:
是
的切线;
(2)若
的半径为2,
,求
的度数;
(3)在(2)的条件下,求图形中阴影部分的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](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/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/27/6aa92a41-b0ba-453f-b219-4e0386b1efad.png?resizew=144)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc90c2d45477e166b02359525f40aa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
(3)在(2)的条件下,求图形中阴影部分的面积.
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【推荐1】电子体重秤读数直观又便于携带.为人们带来了方便.某综合实践活动小组设计了简易电子体重秤:制作一个装有踏板(踏板质量忽略不计)的可变电阻
,
与踏板上人的质量
之间的函数关系式为
(其中
为常数,
),其图象如图1所示;图2的电路中,电源电压恒为
伏,定值电阻
的阻值为
欧,接通开关,人站上板,电压表显示的读数为
,该读数可以换算为人的质量m,温馨提示:
①导体两端的电压
,导体的电阻
,通过导体的电流
,满足关系式
;
②串联电路中电流处处相等,各电阻两端的电压之和等于总电压.
![](https://img.xkw.com/dksih/QBM/2023/6/3/3251870483529728/3255057941094400/STEM/eb9ecc2e330741f591346e7dfa72444f.png?resizew=554)
(1)求
与
之间的函数关系;
(2)用含
的代数式表示
;
(3)若电压表量程为
伏.为保护电压表,请确定该电子体重秤可称质量的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efc18a5bb2e53586331b2a58538a48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efc18a5bb2e53586331b2a58538a48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/721c6178312d2a647365390e02a6a1e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/145af55a683736443895c9addf919fdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764ce13eba807c14daf3498cec3bef8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be9b4a83b9aebebf29de0c4406ebf894.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b7f27ebcef70a3ebbbe8d2e53ea0896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe5cb81b72e94f92d2aaecd553daac2.png)
①导体两端的电压
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52b4f24969673c863b5aff4fb6751ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c83f61a0d94fac4f83902a3ca0fc862.png)
②串联电路中电流处处相等,各电阻两端的电压之和等于总电压.
![](https://img.xkw.com/dksih/QBM/2023/6/3/3251870483529728/3255057941094400/STEM/eb9ecc2e330741f591346e7dfa72444f.png?resizew=554)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efc18a5bb2e53586331b2a58538a48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)用含
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe5cb81b72e94f92d2aaecd553daac2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若电压表量程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee0c10ba036c872c09390180153ef40.png)
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【推荐2】小华以前在学习一次函数的时候,通过研究发现:将一次函数
的图像向右平移
个单位,再向上平移
个单位后(
),得到的新的函数表达式为
;类似地,将反比例函数
的图像向右平移
个单位,再向上平移
个单位后(
),得到的新的函数表达式为
,请运用这一知识解决问题:
(1)直接运用:函数
的图像可以由函数
的图像向右平移_____个单位,再向上平移_____个单位得到,其对称中心的坐标是_________________.
(2)理解运用:如图直线
和双曲线交于点A、B,其中点A坐标是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86022205a7487439dd8d0897cd3bf19.png)
①求出双曲线的函数表达式;
②将直线
向左平移2个单位,再向下平移3个单位,求出平移后的直线表达式;
③直接写出不等式
的解集.
(3)灵活应用:小华经过研究发现函数
的图像也是双曲线,已知点P、Q分别是两支上的两个动点,分别过点P、Q作
轴的垂线,垂足分别为M、N,问
轴上是否存在一个点C,使得
和
的面积相等,若存在求出点C坐标及相等的面积,若不存在请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b343d77ee4dced82ecc479206c42977d.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/22d812643e080d4d447fab7fe2ae2646.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03818981bf2dd61651e3b76d91e5637c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d49d34012ddf68fb981eb4975ac99b9.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/22d812643e080d4d447fab7fe2ae2646.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ffb188720f6249ca5251fadfe6d954.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/22/5af35cc3-15f0-4492-aad4-cff21a6c76f3.png?resizew=197)
(1)直接运用:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a88d4415259fd8eb70d8512caba0d21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/746de43701a269ea4c7ed384ee371116.png)
(2)理解运用:如图直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86022205a7487439dd8d0897cd3bf19.png)
①求出双曲线的函数表达式;
②将直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
③直接写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95acace6ed559aeef0bb13f652aa0c9a.png)
(3)灵活应用:小华经过研究发现函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3371bef3c2927f8a214f1740aa8ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f7c4f34ee6aa2c04df87e488cf0e5d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b60b06c04ab7d78e1fc473a7f6210bb6.png)
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