Albert measured the rate of water pouring into his bathtub. his measurements showed that the relationship between the height (in inches) of the water in the bathtub, y, and the time (in minutes) that the water pouring, x, could be modeled by the equation y=6+0.50x. according to the model, how many minutes of the water pouring would cause the height of the water in the bathtub to increase by 1 inch?