The Regression Model $\hat{ Y }$ = 160 + 8x₁ - 5x₂ Has Been Fitted to -

Short Answer

The regression model $\hat{ Y }$ = 160 + 8x₁ - 5x₂ has been fitted to a set of data.If x₂ = 20,what will be the effect on $\hat { Y }$ if x₁ increases by 1 unit?
$\hat { Y }$ will ____________________ by ____________________