A store is monitoring the sale price of an item. The table models the daily price, y, in dollars, after a given number of days, x. x (days) 0 1 2 3 4 y (price in dollars) 150 135 120 105 90 Part A: Which type of function best models the data? (5 points) Part B: Explain how to determine the best model. Support your answer using complete sentences. (5 points)
