Assume that the demand function for a certain commodity has the form 
where x is the quantity demanded, measured in units of a thousand, and p is the unit price in dollars. Suppose the quantity demanded is 4,000 (x = 4) when the unit price is $8.00 and 8,000 (x = 8) when the unit price is $4.00. Determine the demand equation.
Definitions:
Available Supply
The quantity of goods or materials in stock that is ready to be sold or distributed.
Maximize Profits
Maximizing profits is the strategic goal of increasing a company's earnings to its highest possible level by optimizing revenue streams and reducing costs.
Differential Pricing
The strategy of selling the same product to different customers at different prices.
Total Cost
The complete cost of production or service delivery, including direct, indirect, fixed, and variable costs.
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