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Definition
DEFINITION A function f is said to be constant on an interval I if: f(x1) = f(x2) far all x1, x2 in I. f is increasing on I if: f(x1) < f(x2) whenever x1 < x2 in I. f is decreasing on I if: f(x1) > f(x2) whenever x1 < x2 in I.
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Last Update: 2006-11-05