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Find the domain and the range of the relation and determine whether it is a function....

Find the domain and the range of the relation and determine whether it is a function.

?{(66?,44?),(minus?1010?,minus?55?),(11?,minus?22?),(33?,minus?88?)}

??The domain is ?{ }.

(Simplify your answers. Type an integer or a fraction. Use commas to separate answers. Type each answer only? once.)

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