1 . 如图,在同一平面直角坐标系中,一次函数
的图象与x轴交于点A,与y轴交于点B,与
的图象交于点C,已知点A的坐标为
,点C的坐标为
.
的面积;
(2)直接写出关于x的不等式
的解集:______;
(3)直接写出关于x的不等式组
的解集:______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4a2b4c212450b2a0f77e042c8da13dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82c1a7f5ddf913c6aa1a5994a3ea98a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a2f5fab78f965dbfe82eab328f15a8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebcc52a06d806fde891e09a0a389fcd4.png)
(2)直接写出关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710f5b495491febf69681b978553754f.png)
(3)直接写出关于x的不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49f78d5505ef981339ab327d8d06a383.png)
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2 . 已知一次函数
的图象是由函数
的图象平移得到的,且经过点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/893cba6c2b0374fb1e0cec259fe353ab.png)
(1)求这个一次函数的表达式;
(2)当
时,对于x的每一个值,函数
的值小于一次函数
的值,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d501afbd7542f2f724b658edf39af4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1d8d5cea065075fe50706abe3ae802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/893cba6c2b0374fb1e0cec259fe353ab.png)
(1)求这个一次函数的表达式;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc3e5be1796493161a4df7e28a6f6b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1369964d66f9b6da55eba9f2c7e272cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
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3 . 如图,在平面直角坐标系中,一次函数
的图象(
是常数且
)分别与
轴和
轴交于点
和点
,一次函数
的图象(
是常数且
)分别与
轴和
轴交于点
和点
,直线
与
交于点
.
和
的值;
(2)不等式
的解集为________;方程组
的解为________;
(3)若点
是直线
上一点,且
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/845cb3bc2716b77712aa7ba6467b83c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1326c3aac61397f6be2d46bfbb8fe917.png)
![](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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbeb960c217099b92520c5601dbeaa2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f494e4db0034036232b9857b95ca8cb.png)
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d507d08aceaec469d69d0c317f63490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
(2)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7d44a66235375cda6aabbb5146bd281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1459085b3b32285f652ab26be4111.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/534f339806c6b21d7decc7718685146a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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4 . 已知直线
与直线
相交于点
.
(2)请结合图象直接写出不等式
的解集;
(3)求直线
、直线
与y轴围成的三角形的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3bd1e3b755914826b3b086e12dccefd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1329ed8263f26cb24526664164541e80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b73cbe595a76418351f6675a8cb32c.png)
(2)请结合图象直接写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ccea8edea7b018c67a702928b104b4c.png)
(3)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
您最近一年使用:0次
2024-05-09更新
|
116次组卷
|
2卷引用:广东省茂名市电白区2023-2024学年八年级下学期期中数学试题
名校
5 . 在平面直角坐标系
中,已知一次函数
的图象经过点
,
.
的解析式;
(2)当
时,对于x的每一个值,函数
的值大于函数
的值,写出n的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ececd20089801c2228b63367418703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/150f1dfec4b2eb9fcdeadb0b18d2c286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc387da3c10d0ffde2a41a935cc1331.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ececd20089801c2228b63367418703.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10a7e4dcebd24c843379926de9c0b780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd5848d7371b15965ab8990329fe04bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ececd20089801c2228b63367418703.png)
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6 . 一般的,在数学中我们规定将实数
,
,…,
中的最大数记为
,例如
.那么函数
的图象大致为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eccc3751531fd950ad6911f5b02e6143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42f4c94f451fe705d0f3bd0291c5cf2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a612bbb50126e8552f2ca7dae64298.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
7 . 如图,在矩形
中,
,动点
分别从点
同时出发,P点以每秒1个单位长度的速度沿着
运动,到达A点停止运动,点Q以每秒
个单位长度的速度由
运动,到达D点停止运动,P点运动时间为t秒,令
的面积为
的面积为
.回答下列问题:
与t之间的函数关系式以及对应的t的取值范围;
(2)请在平面直角坐标系中画出
的图象,并写出
的一条性质;
(3)根据图像,直接写出当
时,t的取值范围_________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aebb9945e4d5e46d28d2a78ed09ae715.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3015eea1309a7cea34438008d082233d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9ca7ae3211daf70f72d45d2bddec0c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7012d1ff11db5e150182e19646814cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d86ab7c97cd8a0b15ba5efc1be94230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f951a536cc785994e26d39407d20c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/548edc04dfb90652f2584520b820f739.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b2a8413fd70da5b413b800ef2b70c0.png)
(2)请在平面直角坐标系中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b2a8413fd70da5b413b800ef2b70c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
(3)根据图像,直接写出当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f99df1a7b58018125b99578b779342.png)
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8 . 如图,在平面直角坐标系中,O为坐标原点,直线
分别与x轴、y轴交于点B、C,且与直线
交于点A.
(2)直接写出关于x的不等式
的解集;
(3)若D是线段
上的点,且
的面积为3,求直线
的函数表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e434a6fc177990ab7f2b604c111e1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d585d2d6643471640905d234d9538c5.png)
(2)直接写出关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c39ca62a75a3cba67e8113b1970938.png)
(3)若D是线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a9a6eeeebf3cff569578d7366b755aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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9 . 如图,一次函数
(k、b为常数,且
)的图象分别与x轴y轴交于点
,
;一次函数
(m为常数)的图象与x轴交于点C,与一次函数
的图象交于点D,已知关于x的不等式
的解集是
;
(2)求关于x的不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2375a27ead9549550676d4e6a2b47243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/549f5e607ed8f8812cd9d40b693074fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b74381f68eb1e33d412a7a3d62313f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de5ddc9dc0c4a19583ed9e17384c05c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/036558097eb058056dee10a742604e24.png)
(2)求关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c117681bf24b4043d1f00d41df2b72.png)
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10 . 已知:如图,直线
与
轴交于点
,与
轴交于点
,平面内有一点
,直线
与
轴交于点
.直线
的解析式记作
,直线
解析式记作
,直线
与直线
相交于点
.
的面积;
(2)当
______时,
;
(3)在
轴上有一动点
,使得
为等腰三角形,请直接写出
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/4771434a43ef4202325593a9d6931abb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d35013f7e46484eea917b487db770f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed06ccefffc165f9c77250cd28301d8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad8b17b96bc58f309383d9b6972c458.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9412b2f37124a6f9c10d29623e3725d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6830ebecddbd9759be626289c408e4f3.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/779dfa24f655ebf82cfaeeeb25cb2524.png)
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dd1ae36724363d23865f9bc2fc6ecc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
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