If ax+b=0 Is x more than o
1)a+b>0
2)a-b>0
DS GMATPrep
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- jayhawk2001
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1 - insufficient.
Take {a = 8, b = 4, x = -0.5}, {a = 8, b = -4, x = 0.5}
x can be positive or negative
2 - insufficient
Take {a = 8, b = 4, x = -0.5}, {a = 8, b = -4, x = 0.5}
Together, same story.
Hence E
Take {a = 8, b = 4, x = -0.5}, {a = 8, b = -4, x = 0.5}
x can be positive or negative
2 - insufficient
Take {a = 8, b = 4, x = -0.5}, {a = 8, b = -4, x = 0.5}
Together, same story.
Hence E