1 . 已知点
到两坐标轴的距离相等,那么
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e058c9c1e9dc1cd41fb6266322fba2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.4 | B.![]() | C.![]() | D.![]() ![]() |
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2 . 已知点
,解答下列各题:
(1)若点
在
轴上,求出点
的坐标;
(2)若点
的坐标为
,直线
轴,求出点
的坐标;
(3)若点
到
轴、
轴的距离相等,求出点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4ade4472b8cc7909760215d0f56f083.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1beb189381103ad1e758fd8cfedb6355.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d928238e1f1677f5f20ed62da87eb04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/dad2a36927223bd70f426ba06aea4b45.png)
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名校
3 . 在解方程
时,下列移项正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b83e88010ce31aac18763df4c3ade297.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
4 . 方程
的解是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9378f4030a56301dfdf892c0b36182b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 若
是二元一次方程
的一个解,则m的值是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c40c4c5bb88d726e091d731230b087b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf6454c3c2f8b932f360ed40c459f30.png)
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6 . 若关于x,y的二元一次方程组
的解也是二元一次方程
的解,则k的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acf14e1d37661ef912d56c765405ea97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/804731150c0fbb74309a274e16eab199.png)
A.2 | B.1 | C.![]() | D.![]() |
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7 . 解下列方程:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85477db78f14b17093cfc4a93831c56f.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85477db78f14b17093cfc4a93831c56f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b2f7604bdb96998cc8930c0693be51.png)
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8 . 当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
________ 时,代数式
与
互为相反数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b482df9046a13963befb97f3167768de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa54d2a1b192048f8de9f66f0e14a1c1.png)
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9 . 已知
是方程
的解,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0e131aba1d144b19ed4d25a9c49da34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc38e14cc01b32efe014506a3df43eab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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10 . 【阅读材料】已知
是关于
的多项式,记为
.我们规定:
的导出多项式为
,记为
.例如:若
,则
的导出多项式
;若
,则
的导出多项式
.
【类比探究】(1)
,则它的导出多项式
___________;
【拓展应用】(2)设
是
的导出多项式.若
,求关于
的方程
的解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c964e149ebd8bd5b2307f9b9e803caf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826308511448f7b791edf4199c690768.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826308511448f7b791edf4199c690768.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa3a3fc366487b798363daeeb3643ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11a22c453d9041febde25582b463e642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/046b388177cf781f9a1418c0cc971ece.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826308511448f7b791edf4199c690768.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711ea620e3108f5dc10b0f9d91ec96d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84bd2e39d145f598e41d2bbff0e94f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826308511448f7b791edf4199c690768.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f056d73b20957d14c3290b5c97f24eb6.png)
【类比探究】(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7604e6e8e1da83ef655af7f3a18b7823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/588056ae7548b5743371671a0162a83f.png)
【拓展应用】(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11a22c453d9041febde25582b463e642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826308511448f7b791edf4199c690768.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1df64d9daf1cb231eadbfb907f57e023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ac95d3e3ed182968bc20a499ac0064.png)
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