Lean body mass (your weight leaving out fat) helps predict metabolic rate (how many calories of energy you burn in an hour). The relationship is...

Lean body mass (your weight leaving out fat) helps predict metabolic rate (how many calories of energy you burn in an hour). The relationship is roughly a straight line. The least-squares regression line for predicting metabolic rate (y in calories) from lean body mass (x in kilograms) is y = 113.2 + 26.9x.Reference: Ref 15-7The slope of the regression line is