Question 406060:  The one-to-one functions g and h are defined as follows.
 
g={(-3,0),(0,9),(3,2),(8,-4)} 
h(x)=2x-3
 
find the following.. 
g^-1(0)=? 
h^-1(x)=? 
(h(h^-1))(-9)=?  ( For this last one, I wasn't sure how to write out( h composite of h^-1) (-9).  
 Answer by stanbon(75887)      (Show Source): 
You can  put this solution on YOUR website! The one-to-one functions g and h are defined as follows.  
g={(-3,0),(0,9),(3,2),(8,-4)} 
h(x)=2x-3  
find the following.. 
g^-1(0)=-3 
----------------- 
h^-1(x)= (x+3)/2 
----------------------- 
(h(h^-1))(-9)= -9  
======================== 
Cheers, 
Stan H. 
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