$\"\"$

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Given function is $\"\"$ .

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

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$\"\"$

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Next Switch x for y and y for x. \ \

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$\"\"$

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$\"\"$

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$\"\"$

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Next solve for y:

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$\"\"$

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$\"\"$ (Subtract 2 from each side) \ \

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$\"\"$ (Apply additive inverse property: $\"\"$ )

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$\"\"$ (Apply additive identity property: $\"\"$ )

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$\"\"$ (Divide each side by 3) \ \

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$\"\"$ (Cancel common terms) \ \

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$\"\"$ (Simplify) \ \

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The value $\"\"$ . $\"\"$

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Write in function notation,using $\"\"$ to represent the invrse of the function f. \ \

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$\"\"$

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"Y " value substitute in above function, \ \

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$\"\"$

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$\"\"$

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The invrse of the function $\"\"$ is $\"\"$ .