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What is the equation of the line \(k\) that is perpendicular to line \(y = 2x\) and passes through the point \((a, b)?\)
(1) \(a = -b\)
(2) \(a - b = 1\)
Answer: C
Source: GMAT Club Tests
(1) \(a = -b\)
(2) \(a - b = 1\)
Answer: C
Source: GMAT Club Tests
