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The graph of y = f(x) is shown below in red. Given that f is invertible, find $f^{-1}(4)$.

 

 Apr 9, 2021
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Note  that  (5,4)  is on  f(x)

 

So..the  inverse reverses  the  co-ordinates......so ...the point  (4,5)  is on the  inverse....so

 

f -1 (4)   = 5

 

 

cool cool cool

 Apr 9, 2021

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