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Find the domain of the function f(x,y)=x Determine whether it is open, or closed, or neither. Also determine it is bounded or not. (b)

Find the domain of the function f(x,y)=x Determine whether it is open, or closed, or neither. Also determine it is bounded or not. (b) Find the points (x, y) at which f(x, y) = 1. (c) Plot the domain of the function and also, graph the set of points f(x.y) = 1 on the same figure.

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