Answer:
The answer is: He needs the price of coffee to go down to convince him to buy more.
Explanation:
A demand curve (almost) always has a negative slope. As a product gets more expensive, the amount of people willing to buy that product decreases. So if the product gets cheaper, the more people are willing to purchase it.
The opposite happens with the supply curve, as the price of a product increases, the more companies are willing to sell that product.
