Graph the relationship between y

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Graphing a second-order model. Consider the second-order model

y = 1 + x1 - x2 + x1x2 + 2x12 + x22

(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?

(c) How do the graphed curves in part a relate to each other?

(d) Do the independent variables x1 and x2 interact? Explain.

Reference no: EM131404467

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