Write down multivariate linear regression model with 3 explanatory variables using general notations (y, β0, β1, β2, β3, x1, x2, x3 and ε) and identify dependent variable, independent variables, constant term, coefficient, and error term.

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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.