1 . 已知直线l过点
,且斜率为
,点M在直线l上,若以
的模t为参数,则直线l的参数方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/008a5ce96e6186ddb239590694ae33c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3a9ad438c2a66447bf88855eee50e45.png)
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2 . 同一条曲线在不同的坐标系中,会有不同的方程.直线
经过原点,倾斜角为
,则在平面直角坐标系和极坐标系中下列方程不能表示直线l的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知点
与
坐标满足
,且
与
在同一直线
上运动,则所有满足条件的直线
方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddec0518b313cfade7bd2f68295c1183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b354092228c93523e3ab08d6a60e140.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
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