The demand function for a truckload of firewood for college students in a small town is QC = 400 − p.

ECON MICRO
5th Edition
ISBN:9781337000536
Author:William A. McEachern
Publisher:William A. McEachern
Chapter5: Elasticity Of Demand And Supply
Section: Chapter Questions
Problem 1.1P: (Calculating Price Elasticity of Demand) Suppose that 50 units of a good are demanded at a price of...
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I need help with how to draw the total demand curve in part 3. I am using Excel.

 

The demand function for a truckload of firewood for college students in a small town is QC = 400 − p


It is sometimes convenient to rewrite a demand function with price on the left side. We refer to such a relationship as the inverse demand function. Therefore, the inverse demand function for college students is p = 400 − Qc.


The demand function for other town residents isQr = 400 − 2p


1. What is the inverse demand function for other town residents?


2. At a price of $300, will college students buy firewood? What about other town residents? At what price is the quantity demanded by other town residents zero?


3. Draw the total demand curve, which sums the demand curves for college students and other residents.

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