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Mathematics 15 Online
OpenStudy (anonymous):

what is the inverse function of 7x+4 ( this is a one to one function) ??

OpenStudy (anonymous):

it is one to one because the graph is a line

OpenStudy (anonymous):

suppose you had to solve \[7x+4=25\] what would you do? subtract 4 then divide by 7 that is what the inverse function does, find the input when you know the output, so it is \[f^{-1}(x)=\frac{x-4}{7}\]

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