In mathematics, the abscissa (/æbˈsɪs.ə/ plural abscissae or abscissas) and the ordinate are respectively the first and second coordinate of a point in a coordinate system: abscissa -axis (horizontal) coordinateordinate -axis (vertical) coordinate Usually these are the horizontal and vertical coordinates of a point in a two-dimensional rectangular Cartesian coordinate system. The distance of a point from y-axis scaled with the x-axis is called abscissa or x coordinate of the point. An ordered pair is used to denote a point in the Cartesian plane and the first coordinate (x), in the plane, is called the abscissa. For example, if (x, y) is an ordered pair, then y is the ordinate here. The distance of a point from x-axis scaled with the y-axis is called ordinate. The distance of a point from the y-axis, scaled with the x-axis, is called abscissa or x coordinate of the point.
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