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The function is .
Replace with y.
Next switch x for y and y for x.
Next solve for y:
(Add 2 to each side)
(Apply additive inverse property: )
(Apply additive identity property: )
(Divide each side by 4)
(Cancel common terms)
(Simplify)
()
The value of .
Write in function notation,using to represent the inverse of the function f.
Substitute in above function,
The inverse function of is .
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