How do the graphed curves relate to each other

Reference no: EM131404445

Graphing a first-order model. Consider the first-order equation

y = 1 + 2x₁ + x₂

(a) Graph the relationship between y and x₁ for x₂ = 0, 1, and 2

(b) Are the graphed curves in part a first-order or second-order?

(d) If a linear model is first-order in two independent variables, what type of geometric relationship will you obtain when E(y) is graphed as a function of one of the independent variables for various values of the other independent variable?

Reference no: EM131404445

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