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Mathematics 9 Online
OpenStudy (anonymous):

Inverse Functions - PLEASE HELP!

OpenStudy (anonymous):

OpenStudy (agent47):

f(3)=28 f-1(x)=(x-1)/9

OpenStudy (agent47):

f-1(28)=27/9=3

OpenStudy (agent47):

well u should know the rule that f-1(f(x))=x

OpenStudy (anonymous):

So confused haha so the answer is 28?

OpenStudy (anonymous):

I just dont get how you got there

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