(1)已知一次函数的图象经过
,
两点.求这个一次函数的解析式;并判断点
是否在这个一次函数的图象上;
(2)如图所示,点D是等边
内一点,
,
,
,将
绕点A逆时针旋转到
的位置,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10d362b95ce7ac5b18fb4d1037fce59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1282cc43ebf4b459832fec04d805989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a436db19eb954d31075d5398f1b92ecd.png)
(2)如图所示,点D是等边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f437e5898c1b229f2755ebe3a3892e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f9f2b623854b130f45d9d74805b86a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/127e0afe797de0c3952e06092a75dc37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb49df05f2e31d005735c3f14a21d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2689f0ce5ab3467d8214794d8acb2bd6.png)
![](https://img.xkw.com/dksih/QBM/2019/8/26/2276965368061952/2277036051816448/STEM/f3e82aae07c1435ba9651580d403608f.png?resizew=143)
更新时间:2019-08-26 12:24:37
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】如图,点
在直线
上.动点P从点
出发,沿y轴以每秒1个单位长度的速度向上移动,且过点P的直线
也随之移动,设点P的移动时间为t秒.
(1)求直线
的函数解析式;
(2)当
时,直线
与
交于点
.
①求
的长;
②直接写出关于x的不等式
的解集;
(3)若点M,N位于直线
的异侧,确定t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d693666f99d0a36a9008e6320426d0d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a528d113fdb2cded90a765015edd2774.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a2b8b43e1fe82fc439d145e91b860c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ded84a5d8cb8d970d80937739b1835b1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/14/9610cede-265d-43ef-a286-84b4f935b3b2.png?resizew=160)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbeede118c407a800b05757b9a1393e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed650f5765929962c9673acbcc282c7b.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
②直接写出关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/350a4cea0bbcdd061a3ea0254f66ce2d.png)
(3)若点M,N位于直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
您最近一年使用:0次
解答题-应用题
|
适中
(0.65)
【推荐2】云南地处高原环境,日照长,昼夜温差大,利于糖分积累,是著名的蓝莓产区,小李家今年种植的蓝莓喜获丰收,采摘上市15天全部销售完,小李对销售情况进行统计后发现,在该蓝莓上市第x天(x取整数)时,日销售量y(单位:千克)与x之间的函数关系式为
蓝莓价格m(单位:元/千克)与x之间的函数关系如图所示.
时,求m与x之间的函数关系式;
(2)设日销售额w元,当
时,求w的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec2f3e816e98ac32f0a0ccb7229bb6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/201a37822d5091db29cdf7fa55935164.png)
(2)设日销售额w元,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3840a8190f6e44656e1a8342564dba.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐3】在“看图说故事”活动中,学习小组结合图象设计了一个问题情境.
![](https://img.xkw.com/dksih/QBM/2022/4/25/2965938583273472/2969520313614336/STEM/3f814405-de07-4deb-9ca9-b471c0e41cb4.png?resizew=474)
已知小明家、小刚家、体育馆、图书馆依次在同一条直线上.小明从家出发,匀速骑行
到达体育馆;在体有馆停留一段时间后,匀速步行
到达小刚家;在小刚家停留
后,两人一起匀速骑行
后到达图书馆;在图书馆停留
后,两人一起匀速骑行返回各自的家中.给出的图象反映了这个过程中小明离开家的距离
与离开家的时间
之间的对应关系.
请根据相关信息,解答下列问题:
(1)填表:
(2)填空:
①小明家与小刚家之间的距离为__________
;
②小明从体育馆到小刚家的步行速度为__________
;
③两人从小刚家到图书馆的骑行速度为__________
;
④当小明离开家的距高为
时,他离开家的时间为__________h.
(3)当
时,请直接写出y关于x的函数解析式.
![](https://img.xkw.com/dksih/QBM/2022/4/25/2965938583273472/2969520313614336/STEM/3f814405-de07-4deb-9ca9-b471c0e41cb4.png?resizew=474)
已知小明家、小刚家、体育馆、图书馆依次在同一条直线上.小明从家出发,匀速骑行
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f536bcc35e61d00f2f8e4d4adb4d0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e55972b2faab535d8470e6e993bbac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f536bcc35e61d00f2f8e4d4adb4d0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86770e400557c89637476ee9a67f2247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f536bcc35e61d00f2f8e4d4adb4d0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/808cf9fbb3486e6c8ab90bab008532a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c326e603eb65a1cd15ced87e1772248.png)
请根据相关信息,解答下列问题:
(1)填表:
小明离开家的时间/h | 0.1 | 0.4 | 0.5 | 2.5 | 3.3 |
小明离开家的距离/ | 1.2 | 5 |
①小明家与小刚家之间的距离为__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fe30c67ac20cd4e8b9cc2d0d420a7b.png)
②小明从体育馆到小刚家的步行速度为__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd9242efa2facde4d7c79ff0c1b00ea.png)
③两人从小刚家到图书馆的骑行速度为__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd9242efa2facde4d7c79ff0c1b00ea.png)
④当小明离开家的距高为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7214611384485b25e300a2fbe2a3ea.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3d89cfd478ea35cc2c928805e80c5a.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】在综合与实践课上,数学老师出示了一道思考题:
【独立思考】
(1)如图1,
为等边三角形
内的一点,
,
,
,将线段
以点A为旋转中心逆时针旋转
得到线段
,连接
、连接
,判断
形状为________,
________.
【探索发现】
(2)如图2,点
是以
为斜边的等腰直角三角形
内一点,
猜想
,
,
之间的数量关系,并说明理由.
【问题解决】
(3)如图3,
,
是四边形
的两条对角线,
,
,且
,
,求
的长.
【独立思考】
(1)如图1,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ef9a26f10ec80be707dd4c282be9c8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec577daa119b13413aafbd667f8922be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40560ea08d6cd8c1d4d9661ee6faaa3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9b123ae31090740589ba27a846620b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ba89e83329983cfadbfcdda151aaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b25f3ea33cc08b1e2a0d9c3a9dccaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b9615139ae8d78c69793bb8edca60eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db90c0feb35aa54464f1303be9118f37.png)
【探索发现】
(2)如图2,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3bc83b7bb9d8e61c4656936fb112139.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
【问题解决】
(3)如图3,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c593ebdb2f1934a0cb56f8c44f454f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a9d367edbc57cb7db31b9636f77903.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f01c4faacedfe56f5127d6c0cc63cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/21/9983c0d6-f102-428d-8ad7-9f8be3542e12.png?resizew=556)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
【推荐2】如图,四边形ABCD内接于⊙O, BD为直径,AC平分∠BCD,
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/13/89f25369-9618-4b46-a1b9-99328e761f2e.png?resizew=158)
(1)若BC=5cm,CD=12cm,求AB的长;
(2)求证:BC+CD=
AC.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/13/89f25369-9618-4b46-a1b9-99328e761f2e.png?resizew=158)
(1)若BC=5cm,CD=12cm,求AB的长;
(2)求证:BC+CD=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
您最近一年使用:0次