The demand function for a certain item is p represents the price of an item and Q represents the number of items sold at that price. (a) Evaluate the demand elasticity E when p = 8. E(8) = -0.625 (b) For what value of p is the demand elasticity unitary? p= | Here, "demand elasticity" is the absolute value of percent change in quantity percent change in price Q= = 200(80 - p²). for an infinitesimal change in price, so AQIQ E = lim Ap-0 Aplp

ENGR.ECONOMIC ANALYSIS
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The demand function for a certain item is
Q=
p represents the price of an item and Q represents the number of items sold at that price.
(a) Evaluate the demand elasticity E when p = 8.
E(8)= -0.625
(b) For what value of p is the demand elasticity unitary?
p=||
Here, "demand elasticity" is the absolute value of
= 200(80 - p²).
percent change in quantity
percent change in price
for an infinitesimal change in price, so
E =
AQIQ
lim
Ap-0 Aplp
Transcribed Image Text:The demand function for a certain item is Q= p represents the price of an item and Q represents the number of items sold at that price. (a) Evaluate the demand elasticity E when p = 8. E(8)= -0.625 (b) For what value of p is the demand elasticity unitary? p=|| Here, "demand elasticity" is the absolute value of = 200(80 - p²). percent change in quantity percent change in price for an infinitesimal change in price, so E = AQIQ lim Ap-0 Aplp
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