In this problem, p is in dollars and q is the number of units. (a) Find the elasticity of the demand function  p2 + 2p + q = 100  at  p = 9.

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Chapter3: Demand Analysis
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In this problem, p is in dollars and q is the number of units.
(a) Find the elasticity of the demand function 
p2 + 2p + q = 100
 at 
p = 9.



(b) How will a price increase affect total revenue?
1-Since the demand is inelastic, an increase in price will increase the total revenue.
2-Since the demand is unitary, there will be no change in the revenue with a price increase.    
3-Since the demand is elastic, an increase in price will increase the total revenue.
4-Since the demand is elastic, an increase in price will decrease the total revenue.
5-Since the demand is inelastic, an increase in price will decrease the total revenue.

  





 
 
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