1 . 判断正误(正确的写正确,错误的写错误)
(1)直线
与
的交点坐标是
.( )
(2)直线
和
的交点有无数个.( )
(3)直线
恒过定点
.( )
(4)直线
经过直线
和
的交点.( )
(1)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107babba45f110012183dc4dc54490f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f1a686b80b8f109a929f58c2de7201d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f907e53abd9e1252b8e7dd4fef9941b5.png)
(3)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9226611a153c9c2bb5c44c35a9118ac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c832f2474efe89961ef41e884da7660c.png)
(4)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcaada7649455fbebcdbdbb9a94e6a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42498f6e0fc9a61c9857b70a87f02c5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7690f62e0b3a59c3ff0c31fe4033de1.png)
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2 . 若两直线相交,则交点坐标一定是两直线方程所组成的二元一次方程组的解.( )
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