Answer:
Details are bellow.
Explanation:
This case is about graphically describing the relationship between supply and demand in a market. As can be seen, the point of intersection between supply and demand is the equilibrium point of the system, and this varies according to supply and demand. In this case, supply has decreased in 2015 compared to 2014, which causes the price to rise from $0.58 to $0.85 while the number of units sold decreases.