A clothing store is going out of business. To sell their remaining inventory, the managers drop the price of each item $5 at the end of each week until the item sells.

Part A: After 5 weeks how much has the price changed

Part B: A line is drawn to model the relationship between the number of weeks and the change in price. Is the slope of this line positive or negative? Why?

Part C: write the equation below to answer the question