In the First-Order Model $\hat{y}$ = 60 + 40x₁ -10x₂ + 5x₁x₂, a Unit Increase

True/False

In the first-order model $\hat{y}$ = 60 + 40x₁ -10x₂ + 5x₁x₂, a unit increase in x₁, while holding x₂ constant at 1, increases the value of $y$ on average by 45 units.