Domain and Range

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What is the DOMAIN of a function?

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The set of all possible input values (x-values) for which the function is defined.

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What is the RANGE of a function?

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The set of all possible output values (y-values) that a function can produce.

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How do you determine the domain of a function from its graph?

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Identify the x-values for which the graph exists; these values form the domain.

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How do you determine the range of a function from its graph?

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Identify the y-values that the graph reaches; these values form the range.

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What does it mean if a function has a restricted domain?

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It means that certain x-values are not included in the function, often due to limitations like division by zero.

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What is an example of a function with a restricted domain?

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