Kimjafo Kimjafo

19-05-2016
Mathematics

contestada

find the inverse of the one to one function. f(x)=2x+5/7

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konrad509 konrad509

19-05-2016

[tex]f(x)=\dfrac{2x+5}{7}\\\\ y=\dfrac{2x+5}{7}\\ 7y=2x+5\\ 2x=7y-5\\ x=\dfrac{7y-5}{2}\\ \boxed{f^{-1}(x)=\dfrac{7x-5}{2}}[/tex]

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