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直线的斜截式方程为,则此直线的斜率和倾斜角分别是 ( )
A.1和 B. C. D.
已知直线l过A(-2,(t+)2)、B(2,(t)2)两点,则此直线的斜率和倾斜角分别为
A.1,135°
B.-1,-45°
C.-1,135°
D.1,45°
已知下列两点坐标,求过其两点直线的斜率和倾斜角。
A.1,135° B.-1,-45°
C.-1,135° D.1,45°
A.1,135° B.-1,-45° C.-1,135° D.1,45°