Which one of the following ordered pairs lies on the curve ?

MATHEMATICS · Single correct · AoPS · Mathematics · Special Functions · Special Functions

Problem

Which one of the following ordered pairs lies on the curve y=1xy=\dfrac{1}{x}? (a) (−2,−14)(-2,-\tfrac14) (b) (4,12)(4,\tfrac12) (c) (2,12)(2,\tfrac12) (d) (−12,4)(-\tfrac12,4)

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