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Suppose that $g(x) = f^{-1}(x)$. If g(-15) = 0, g(0) = 4, g(3) = 9, and g(9) = 3, what is f(f(9))?

 Apr 7, 2021
 #1
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To inverse a function, you can switch x and y. 

f(0) = -1

f(4) = 0

f(9) = 3

f(3) = 9

 

Can you find f(f(9))?

 

=^._.^=

 Apr 7, 2021

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