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asymptotic

The graph of a function with a horizontal (y = 0), vertical (x = 0), and oblique asymptote (purple line, given by y = 2x)

asymptotic

A curve intersecting an asymptote infinitely many times

asymptotic

${\displaystyle f(x)={\tfrac {1}{x}}}$ graphed on Cartesian coordinates. The x and y-axis are the asymptotes.