Answer
The coefficient for $x_1$: if $x_1$ increases by 1 and $x_2$ remains constant, $y ̂$ will increase by 3, on average.
The coefficient for $x_2$: if $x_2$ increases by 1 and $x_1$ remains constant, $y ̂$ will decrease by 4, on average.
Work Step by Step
Given above.
