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Introduction to functions

31 March, 2015 - 15:51

This module prepares you to apply mathematical relations to solving practical problems. The first question is: what are relations? This can be a pure mathematical question that demands a lengthy discussion. For our purposes, however, all you need to know is that a relation is a mathematical statement that describes the relationship among different variables, so

y = 2x - 3, r² + s² + t² = 1 and p - 2 > q + 4

are all examples of relations.