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Decide Whether or Not the Functions Are Inverses of Each f(x)=8x9,g(x)=x+89f ( x ) = 8 x - 9 , g ( x ) = \frac { x + 8 } { 9 }

question 15

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Decide whether or not the functions are inverses of each other.
- f(x) =8x9,g(x) =x+89f ( x ) = 8 x - 9 , g ( x ) = \frac { x + 8 } { 9 }


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