Linear Function -- from Wolfram MathWorld
https://mathworld.wolfram.com/LinearFunction.html
WEBApr 13, 2024 · Linear Function. In calculus, geometry, and plotting contexts, the term "linear function" means a function whose graph is a straight line, i.e., a polynomial function of degree 0 or 1. A linear function in one variable therefore has the form. (1) while a linear function in variables has the form. (2)
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