1 . 某小区有一块绿地如图中等腰直角
所示,计划在绿地上建造一个矩形的休闲书吧
,其中点P,M,N分别在边
上,记
,图中阴影部分的面积为S,当x在一定范围内变化时,S随x的变化而变化,则S与x满足的函数关系分别是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/24/3461bbff-e65e-4058-81af-be5519758f14.png?resizew=123)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34b35208c9e507587a947df63ff4137.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e05aff4a8536aec6a72aab47188cd672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea98a1fefa6385dd05aded1ebce24edf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/24/3461bbff-e65e-4058-81af-be5519758f14.png?resizew=123)
A.二次函数关系 | B.正比例函数关系 | C.反比例函数关系 | D.一次函数关系 |
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2 . 如图,一边靠墙(墙足够长),其它三边用
长的篱笆围成一个矩形
花圃,这个花圃的最大面积是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/16a8687e-d9ca-402a-bda3-12024df288a1.png?resizew=176)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb1e0bd4fe8afb14b572852121cef83d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a881d00bcb6fcdc1029c55898c464d3e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/16a8687e-d9ca-402a-bda3-12024df288a1.png?resizew=176)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 如图,
为等腰直角三角形,
,正方形
的边长为1,且
与
在同一条直线上,
从点
与点
重合开始,沿直线
向右平移,直至点
与点
完全重合时停止.设
的长为
与正方形
重合部分(图中阴影部分)的面积为
,则
与
之间的函数图像大致是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/14/13b7eca5-a772-4ad7-82d7-042d4ccdd211.png?resizew=185)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55e0c5792f8ab55fa3c3cf64f84916e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2257da1e2425f2ea9ac7440f52659ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbc12d2f905163697cdb832803f521c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2257da1e2425f2ea9ac7440f52659ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/14/13b7eca5-a772-4ad7-82d7-042d4ccdd211.png?resizew=185)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 某农场要建矩形的饲养室,如图所示,一面靠着现有足够长的墙,其他三面用材料建设围墙,在中间再建一道墙隔开,并在两处各留
宽的门,已知计划中的材料可建墙体总长为
(不包括门),则能建成的饲养室最大总占地面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/17/d08dcb9a-6638-4b07-bede-0b402d89398f.png?resizew=182)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f328ba89c0a92a4447788b65571f7aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a6d690befd9571e1cf9a80388ab2b68.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/17/d08dcb9a-6638-4b07-bede-0b402d89398f.png?resizew=182)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 如图,用一段长为
的篱笆围成一个一边靠墙的矩形菜园,墙长为
.设矩形菜园的边
的长为
,面积为
,其中
.
①x的取值范围为
;
②
的长有两个不同的值满足该矩形菜园的面积为
;
③矩形菜园
的面积的最大值为
.
其中,正确结论的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1611d15c7e1e4ab4a4a61537b3989d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c2955b553ed5ead16f9f7470f57b08b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3bde6ef2ee5b749b4d48d706543cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baaa2d65026770c5505f8adeb450e43b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21a98c968a7653c11f184a43851941c0.png)
①x的取值范围为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3840a8190f6e44656e1a8342564dba.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b821fa11833325f33af8d1fd8bf6df59.png)
③矩形菜园
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a1c95dc69588e6842df40af57911952.png)
其中,正确结论的个数是( )
A.0 | B.1 | C.2 | D.3 |
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2024-01-13更新
|
449次组卷
|
3卷引用:天津市滨海新区2023-2024学年九年级上学期期末数学试题
6 . 一边靠墙(墙有足够长),其他三边用
米长的篱笆围成一个矩形花园,这个花园的最大面积是( )平方米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e60fbe6820130fb20abc555a94b5ea.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 如图菱形
的边长为
,,
,动点P,Q同时从点A出发,都以
的速度分别沿
和
的路经向点C运动,设运动时间为x(单位:s),四边形
的面积为y(单位:
),则y与x
之间的函数关系可用图象表示为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/115684d5-ba58-401b-a9f9-18ef9bef1ae8.jpg?resizew=145)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095ab4a92bf822e175d370e6d0c8a730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4bf2ed4e49655ce765ba6ffbb6c7d28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd66776565f049eb453c14fcaf79234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3087da5c11909dab613378fee8d471fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f60ce11afb2f34f259546fa4eaa9801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e31351d7b971bda5c97c662fc71103a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/865d6b1dcc625c2cc39336fcd900e917.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/115684d5-ba58-401b-a9f9-18ef9bef1ae8.jpg?resizew=145)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-01-01更新
|
288次组卷
|
2卷引用:2023年广东省东莞市凤岗镇中考一模数学试题
8 . 如图,用一根
的铁丝制作一个“日”字型框架
,铁丝恰好全部用完,则该“日”字型框架
面积的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9871f2a312aaf3a19b40e4fb1a7693b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/8aac305d-3dff-4166-bb23-23706151d3f9.png?resizew=123)
A.![]() ![]() | B.![]() | C.![]() | D.![]() |
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9 . 设边长为
的正方形的面积为
,则
关于
的函数图象大致是( )
![](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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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10 . 如图,在足够大的空地上有一段长为a米的旧墙
,某人利用旧墙和木栏围成一个矩形菜园
,其中
,已知矩形菜园的一边靠墙,另三边一共用了100米木栏.若设
的长度为x米,矩形菜园
面积为S平方米.下列说法错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/eba60f73-5f34-4432-a66c-4b10d322f4ff.png?resizew=223)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b26c112faf0e59cb6294f591dcb6155.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/eba60f73-5f34-4432-a66c-4b10d322f4ff.png?resizew=223)
A.S与x的关系式为![]() | B.当![]() ![]() |
C.当![]() ![]() | D.不论a为何值,S的最大值均为1250 |
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