2.2.1.1.3.1a直线的点斜式方程(判断直线是否平行或垂直)
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Earned Point(s): 0 of 0, (0) 2.2.1.1.3.1a.001 已知直线l1: 2.2.1.1.3.1a.002 直线y=2x+3与y–2=2(x+3)的位置关系是( ) 2.2.1.1.3.1a.003 直线y=3x–a与y=3x的位置关系是( )
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,l2:
,判断直线l1和l2的位置关系( )
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