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1 . 有理数
、
、
在数轴上对应点的位置如图所示,化简
的结果是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dedc9288c4b8276f2c3e80ba2564dc50.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/f1bc154c-56bf-4a48-bd4e-10d7d6388f94.png?resizew=197)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 如图,在菱形
中,
,
,点
在边
上,且
.若直线
经过点
,将该菱形的面积平分,并与菱形的另一边交于点
,则线段
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/4/456f5a30-0c2f-47b1-869a-ed03fc87232d.png?resizew=200)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2594e927cb7ed022acc039c3bb136d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b0393ce62b24aa5f9b740d4cc6743b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/4/456f5a30-0c2f-47b1-869a-ed03fc87232d.png?resizew=200)
A.![]() | B.![]() | C.![]() | D.5 |
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3 . 如图,边长为8的正方形
的两边在坐标轴上,以点
为顶点的抛物线经过点
,点
是抛物线上点A,
间的一个动点(含端点),过点
作
于点
,点
,
的坐标分别为
,
,连接
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/2/d4e245e4-d95a-4866-b024-9ad0198f26aa.png?resizew=193)
(1)小明探究点
的位置发现:当点
与点A或点
重合时,
与
的差为定值,进而猜想:对于任意一点
,
与
的差为定值,请你判断该猜想是否正确,并说明理由;
(2)小明进一步探究得出结论:若将“使
的面积为整数”的点
记作“特别点”,则存在多个“特别点”,且使
的周长最小的点
也是一个“特别点”.请直接写出 所有“特别点”的个数,并直接写出
周长最小时“特别点”的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7edadd9995393ece0d7b7bf4801504bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/1daa67de3b8971d54ced0cac0cd11f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8e32f16d75ccb62a04970f861827fca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/2/d4e245e4-d95a-4866-b024-9ad0198f26aa.png?resizew=193)
(1)小明探究点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
(2)小明进一步探究得出结论:若将“使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cff7399ecc698e2fb415147c96d0d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cff7399ecc698e2fb415147c96d0d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cff7399ecc698e2fb415147c96d0d03.png)
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4 . 如图,已知
,
为反比例函数
的图象上一点,以
为直径的圆的圆心
在
轴上,
与
轴正半轴交于
,则反比例函数解析式为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/2/2f24651f-c2db-4fb5-a084-35c1ce31a3d6.png?resizew=178)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd99c5000629d7f49499d666e68f40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b0b612460326448de36e160c8d29af9.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669e8dfb2b45e6f74d86408343a18fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7bbb2a23bb28d443062ae3e1a30b1be.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/2/2f24651f-c2db-4fb5-a084-35c1ce31a3d6.png?resizew=178)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 如图①,一张矩形纸片
,其中
,
,先沿对角线
对折,点
落在点
的位置,
交
于点
.
(1)线段
与
是否相等?请说明理由;
(2)如图②,再折叠一次,使点
与点
重合,得折痕
,
交
于点
,求
和
长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6996aa31bf1486ced60c2249a6e6989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6747441b260ca043446b5d472fece440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39e210795a966bd5dc1293479ab1988b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db94ea06ef27a92107d4bb70a404a826.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/30/e41ff245-62c2-49d3-b1ac-42cc1c3216f8.png?resizew=285)
(1)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b73d8ce7ee5d8676f7e8068c06765ddf.png)
(2)如图②,再折叠一次,使点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4c865445dda4a59b6d5cb18fd74404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4c865445dda4a59b6d5cb18fd74404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b46c607b3deac746c0ef3389ad8f65c.png)
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6 . 若关于
的方程
的三个根恰好可以组成某直角三角形的三边长,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e37a5a6ee298190cea1d41ce7a0735c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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7 . 已知关于
的一元二次方程
.
(1)若方程有两个不相等的实数根,求
的取值范围;
(2)当
取满足(1)中条件的最小整数时,设方程的两根为
和
,求代数式
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e47a7affcfa403a5e5019627a8e5d3a.png)
(1)若方程有两个不相等的实数根,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/354921797e323923cc8a2b0cc5269897.png)
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8 . 如图,将左边正方形剪成四块,恰能拼成右边的矩形.若
,则这个正方形的面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/b5eea7c8-9cbb-405e-aa32-91a48198cc9b.png?resizew=265)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/b5eea7c8-9cbb-405e-aa32-91a48198cc9b.png?resizew=265)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 欧拉(L.Euler,1707-1783)是世界上著名的数学家、天文学家、物理学家.在欧拉的著作《代数引论》中有这样一个有趣的题:两个农妇一共带了100个鸡蛋去集市卖,两人所带鸡蛋个数不相同,但卖得的钱数相同.第一个农妇说:“如果我有你那么多鸡蛋就可以卖15个克罗索(克罗索是古代欧洲的一种货币名称).”第二个农妇答道:“如果我有你那么多鸡蛋就只能卖
个克罗索.”试问这两名农妇各带了多少个鸡蛋?设第一个农妇带了
个鸡蛋,根据两人卖得的钱数相同,可列方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98f2ccae474bbb4254bb00d71b41af40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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10 . 若关于
的一元一次不等式组
的解集是
,求关于
的分式方程
的非负整数解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0798db15439865d1e4e28a59d39140.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a930217da110a73bb109f3afc3f754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3c04d2505c0ea6552797f7db8106f64.png)
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