Question 95227
Sketch the curve; then flip it over on the line y=x.
That will be the graph of the inverse.
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Here's the original graph; you will have to keep in mind
that the domain is restricted to x>=0. I can't show you 
the graph of the inverse.

{{{graph(400,300,-10,10,-10,10,2x-x^2)}}}
Cheers,
Stan H.