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abscissa

In mathematics, the abscissa (; plural abscissae or abscissas) and the ordinate are respectively the first and second coordinate of a point in a Cartesian coordinate system: abscissa≡x{\displaystyle \equiv x}-axis (horizontal) coordinateordinate≡y{\displaystyle \equiv y}-axis (vertical) coordinateTogether they form an ordered pair which defines the location of a point in two-dimensional rectangular space.

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