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 Related Terms
 Curve:  A set of points that form or can be joined by a continuous line on a graph (See Figures A and B below).
Point: One of the basic undefined terms of geometry. A point has no length, width, or thickness, and we often use a dot to represent it.
Closed Curve: A curve that can be traced using the same starting and stopping points, and without crossing or retracing any part of the curve.
Graph of a Function: The set of all the points on a coordinate plane whose coordinates makes the rule of function true.