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In the First-Order Model $=75-12 x_{1}+5 x_{2}-3 x_{1} x_{2}$ , a Unit Increase In

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In the first-order model $In the first-order model =75-12 x_{1}+5 x_{2}-3 x_{1} x_{2} , a unit increase in x _ { 1 } , while holding x _ { 2 } constant at a value of 2, decreases the value of y on average by 8 units.$ $=75-12 x_{1}+5 x_{2}-3 x_{1} x_{2}$ , a unit increase in $x _ { 1 }$ , while holding $x _ { 2 }$ constant at a value of 2, decreases the value of $y$ on average by 8 units.

In the First-Order Model =75−12x1+5x2−3x1x2=75-12 x_{1}+5 x_{2}-3 x_{1} x_{2}=75−12x1​+5x2​−3x1​x2​ , a Unit Increase In

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In the First-Order Model $=75-12 x_{1}+5 x_{2}-3 x_{1} x_{2}$ , a Unit Increase In