In the First-Order Regression Model $\hat{y}$ = 12 + 6x₁ +8x₂ + 4x₁x₂, a Unit Increase

True/False

In the first-order regression model $\hat{y}$ = 12 + 6x₁ +8x₂ + 4x₁x₂, a unit increase in x₁ increases the value of $y$ on average by 6 units.