Domain and Range Review

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What is the definition of Domain in a function?

Back

The domain of a function is the complete set of possible values of the independent variable (usually x) for which the function is defined.

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What is the definition of Range in a function?

Back

The range of a function is the complete set of possible values of the dependent variable (usually y) that result from using the function.

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Back

The domain is all real numbers except x = 3.

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Back

Front

What does it mean if a function is defined for all real numbers?

Back

It means the domain of the function is all real numbers, typically denoted as (-∞, ∞).

Front

How do you find the domain of a function given a fraction?

Back

Set the denominator not equal to zero and solve for x.

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Back

The domain is all real numbers (-∞, ∞).

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The range is all real numbers (-∞, ∞).