Answer
$ŷ =−4.4+9.110x_1+4.294x_2+3.767x_4$
The coefficient for $x_1$: if the fat increases by 1 g and the protein and the carbs remain constant, then the calories will increase by 9.110, on average.
The coefficient for $x_2$: if the protein increases by 1 g and the fat and the carbs remain constant, then the calories will increase by 4.294, on average.
The coefficient for $x_2$: if the carbs increases by 1 g and the fat and the protein remain constant, then the calories will increase by 3.767, on average.
Work Step by Step
Given above.
