Functions, Domains, and Ranges: Understanding the Basics

The video tutorial introduces the concept of functions, starting with a linear function example, explaining the domain and range, and identifying it as a one-to-one function. It then explores quadratic functions, showing how they can be many-to-one, and discusses how to determine their range by graphing. Finally, it presents an example of a mapping that is not a function, explaining the concept of one-to-many mappings and how to adjust them to become functions.

What is the definition of a function as described in the text?

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Explain the difference between a one-to-one function and a many-to-one function.

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What is the domain and range of the quadratic function discussed?

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How can a one-to-many mapping be turned into a function?

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What happens when you input negative values into the square root function?

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