In the first-order model $\hat{y}$ = 8 + 3x₁ +5x₂, a unit increase in $x _ { 2 }$ , while holding $x _ { 1 }$ constant, increases the value of $y$ on average by 3 units.

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The Answer of In the first-order model $\hat{y}$ = 8 + 3x₁ +5x₂, a unit increase in $x _ { 2 }$ , while holding $x _ { 1 }$ constant, increases the value of $y$ on average by 3 units.

In the First-Order Model y^\hat{y}y^​ = 8 + 3x1 +5x2, a Unit Increase In

In the First-Order Model $\hat{y}$ = 8 + 3x₁ +5x₂, a Unit Increase In