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Decide Whether or Not the Functions Are Inverses of Each f(x)=3x+9,g(x)=13x3f ( x ) = 3 x + 9 , g ( x ) = \frac { 1 } { 3 } x - 3

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Decide whether or not the functions are inverses of each other.
- f(x) =3x+9,g(x) =13x3f ( x ) = 3 x + 9 , g ( x ) = \frac { 1 } { 3 } x - 3


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