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Checking and securing understanding of functions

Lesson 13 / 14

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I can appreciate that a function is a mathematical relationship that uniquely maps a set of numbers onto another set of numbers.

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A function has a set of inputs and outputs. For any valid input, there is an output. A function takes an input and performs a series of operations, leading to an output. The set of inputs is called the domain. The set of outputs is called the range.

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