Identifying Function Properties in Real-World Examples

This lesson explains how to determine if relations are functions by examining mappings and real-world scenarios. It emphasizes that not all mathematical relationships are functions, as each input must have exactly one output. The lesson includes examples of mappings and coordinate sets to illustrate function determination. A real-world scenario using Social Security numbers is provided to further clarify the concept. The lesson concludes with a summary of the key points discussed.

What must be examined to determine if a relation is a function?

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Explain why input A in the mapping is not a function.

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What is the significance of having exactly one output for each input in a function?

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How can we determine if a relation is a function using coordinates?

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Describe a real-world scenario that represents a function.

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