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One-page editable Microsoft Word document is an introduction to functions as “mathematical models and predictions”. Chatty and written out. Excerpt follows: In math, we want to be able to describe relationships between variables and answer questions about data. We can use real data to make a mathematical model – a “formula” that gives a good approximation of existing data and can be used to make predictions for the future.
Keywords: functions, relations, order pair, independent variable, dependent variable