ECONOMICS 601 - The relationship between the amount buyers are willing to purchase

Need help with the following:

Create a supply and demand graph in Excel that demonstrates the relationship between the amount buyers are willing to purchase and the quantity available. You may select your own data points, but you must discuss the relationship between supply and demand within the economy, as well as discuss the concept of market equilibrium. Please attach your graphs along with your discussion in your response. Provide an explanation for the value graphing supply and demand and analyzing the data can have on decision-making in a business and the economy.