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Mathematics 9 Online
OpenStudy (anonymous):

Which of the following statements are true of the given lines? Line A: 2x+y=-4 Line B: X+ 2y= -10 Line C: -2x+ 4y= -12 a. Lines a & b are parallel b. Lines b & c are parallel c. Lines a & c are perpendicular d. Lines b & c are perpendicular

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