Given z=f(x,y), how would I go about finding the inverse function(range) like it was done for f(x)=y,when f(x)=x^2-1 ,for example,we would put x^2-1=y and solve for x?

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- July 19th 2008, 08:06 PMesmecoNeed help with inverse function of a two variable function
Given z=f(x,y), how would I go about finding the inverse function(range) like it was done for f(x)=y,when f(x)=x^2-1 ,for example,we would put x^2-1=y and solve for x?