Draw the graph of `(1)/(x)+ (1)/(y)=1`.

Explanation

We have `(1)/(x)+ (1)/(y)=1`
or `" "(1)/(y)=1- (1)/(x)= (x-1)/(x)`
or `" "y = (x)/(x-1)= 1 + (1)/(x-1)`
or `" "(x-1)(y-1)=1`, which is a rectangular hyperbola having centre at `(1, 1)`.

Here lines `x=1 and y=1` are asymptotes.