$\"\"$

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a.

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Find inverse of the function.

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$\"\"$ .

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Rewrite the function as $\"\"$ .

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Replace $\"\"$ with $\"\"$ .

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$\"\"$

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Solve for $\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$ .

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Inverse function is $\"\"$ .

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Show $\"\"$ and $\"\"$ are inverses.

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The functions are $\"\"$ and $\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$

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$\"\"$ .

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Thus, the functions $\"\"$ and $\"\"$ are inverses.

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$\"\"$

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b.

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The function $\"\"$ is used to convert Fahrenheit to Celsius.

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$\"\"$

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a. Inverse function is $\"\"$ .

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b. The function $\"\"$ is used to convert Fahrenheit to Celsius.