C. d. increase ou 1 prices increase of $1 in price is associated with a decrease of $40,000 in sale 2. If the coefficient of correlation is a positive value, then the intercept must also be positive the coefficient of determination can be either negative o the regression equation could have either a positive or a the slope of the line must be positive ====== ================================== pit 15-2 ression model between sales (Y in $2,000), unit price (X? on: 3X, +5X; C. d. increase ou 1 prices increase of $1 in price is associated with a decrease of $40,000 in sale 2. If the coefficient of correlation is a positive value, then the intercept must also be positive the coefficient of determination can be either negative o the regression equation could have either a positive or a the slope of the line must be positive ====== ================================== pit 15-2 ression model between sales (Y in $2,000), unit price (X? on: 3X, +5X