+**Linear** describes a state or progression that unfolds in a straight path, without deviation or sudden turns. In [Mathematics](/wiki/mathematics), it often refers to relationships or functions whose graphs form a straight line, indicating a direct and proportional [Relationship](/wiki/relationship) between quantities.
+## See also
+- [Nonlinear](/wiki/nonlinear)
+- [Geometry](/wiki/geometry)
+- [Algebra](/wiki/algebra)
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