Functions Introduction
On this page we shall introduce functions, and spend some time looking at the basics of how we write them and how they work.
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In this first video we introduce the idea of a function as a machine, and look at function notation.
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In the second video on introducing functions, we look at mapping diagrams, and what makes a mapping a function.
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In this final introductory video to functions we take a deeper look at the domain and range of a function, and how we can work them out, both using algebra and a graph of the function.
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