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Given the function f(x)=9x+7, find its inverse.

Sagot :

Konrad509idn
[tex]f(x)=9x+7\\ y=9x+7\\ 9x=y-7\\ x=\dfrac{1}{9}y-\dfrac{7}{9}\\ f^{-1}(x)=\dfrac{1}{9}x-\dfrac{7}{9}[/tex]
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