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[corrected]

Mathsy's right.

I think there's a mistake in there.y = 10-xx+y = 10x = 10-yTherefore, f^{-1}(x) = 10-x.

Ya it's inverse function.Write it like this:y=10-x-x=y-10x=10-yThis is the inverse function:f^(-1)(y)=10-y[corrected]

I'm positive that it's asking for an inverse. But I dont know why you are dealing with inverse when you have learnt derivatives.

hello everyone. i was doin some calculus and got stuck on this problemf(x)= 10 - xfind the : f^(-1)(x)= ?written as f'(x) just replace the ' w/ the -1what does that mean? is that the inverse or somethIN?i've been dealing w/ derivatives-thanks