Graph s(x)=x\displaystyle {s}{\left({x}\right)}={x} on the Cartesian plane.

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The domain of s(x)\displaystyle {s}{\left({x}\right)} is:   

The range of s(x)\displaystyle {s}{\left({x}\right)} is:   

If any of the above do not exist, enter your answer as "DNE".



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