On a day when the temperature is 25 degrees F, the regression line predicts the amount of gas used to be: A study gathers data on the outside temperature during the winter, in degrees Fahrenheit, and the amount of natural gas a household consumes, in cubic feet per day. Call the temperature x and gas consumption y. The house is heated with gas, so x helps explain y. The least-squares regression line for predicting y from x is y = 1344-17x. The next two questions concern this line. 33,175 cubic feet 1,724 cubic feet 1,383 cubic feet 1,327 cubic feet 919 cubic feet