Abscissa and ordinate a parametric equation. Used in this way, the abscissa can be thought of as a coordinate-geometry analog to the independent variable in a mathematical model or experiment (with any ordinates filling a role analogous to dependent variables). Abscissa and ordinate In mathematics, the abscissa (; plural "abscissae" or "abscissæ" or "abscissas") and the ordinate are respectively the first and second coordinate of a point in a coordinate system. The abscissa of a point is the signed measure of its projection on the primary axis, whose absolute value is the distance between the projection and the origin of the axis, and
Graph of a function formula_2 itself. The graph of the function formula_10 defined by is the set the subset of formula_12 From the graph, the domain formula_14 is recovered as the set of first component of each pair in the graph formula_15. Similarly, the range can be recovered as formula_16. The codomain formula_17, however, cannot be determined from the graph alone. The graph of the cubic polynomial on the real line is If this set is plotted on a Cartesian plane, the result is a curve (see figure). The graph of the trigonometric function is If this set is plotted on a three dimensional