Final answer:
The linear demand function for the beer market in Louisiana in 2017 can be expressed as: Quantity demanded = 151.2 million - 0.5 * Price
Step-by-step explanation:
The price elasticity of demand for beer can be calculated using the formula:
Elasticity = Percentage change in quantity demanded / Percentage change in price
Given that the price elasticity of demand for beer is -0.5, we can use the formula to calculate the percentage change in quantity demanded:
-0.5 = Percentage change in quantity demanded / Percentage change in price
Let's assume that the percentage change in price is a 10% decrease, so the percentage change in price would be -10%:
-0.5 = Percentage change in quantity demanded / -10%
Now, solve for the percentage change in quantity demanded:
Percentage change in quantity demanded = -0.5 * -10% = 5%
Since we know that Louisiana beer drinkers consumed 144 million gallons of beer in 2017 and the average retail price per gallon was $48.00, we can use the percentage change in quantity demanded to calculate the new quantity demanded:
New quantity demanded = 144 million gallons * (1 + 5%) = 151.2 million gallons
Therefore, the linear demand function for the beer market in Louisiana in 2017 can be expressed as:
Quantity demanded = 151.2 million - 0.5 * Price