domain: (-∞, ∞)range: (-∞, ∞)the relation is a function
step-by-step explanation:
any linear relation with finite slope (that is, something other than x=constant) will be a function with a domain and range of "all real numbers."
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further, any odd-degree polynomial will likewise be a function with domain and range of "all real numbers." a linear equation is a polynomial of degree 1, hence of odd degree.