According to economic theory, the demand x for a quantity in a free market decreases as the price p increases (see the figure). Suppose that the number x of DVD players people are willing to buy per week from a retail chain at a price 9,000 0.1p+1' of $p is given by x=- Answer parts (A), (B), and (C). 4500- x= 9,000 10 ≤p≤70. 0.1p+1 Q Demand 2250- 40 Price (dollars) 80 dx (A) Find dp dx dp

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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According to economic theory, the demand x for a quantity in a free market decreases as the price p increases (see
the figure). Suppose that the number x of DVD players people are willing to buy per week from a retail chain at a price
9,000
0.1p+1'
of $p is given by x=-
Answer parts (A), (B), and (C).
4500-
x=
9,000
10 ≤p≤70.
0.1p+1
Q
Demand
2250-
40
Price (dollars)
80
dx
(A) Find
dp
dx
dp
Transcribed Image Text:According to economic theory, the demand x for a quantity in a free market decreases as the price p increases (see the figure). Suppose that the number x of DVD players people are willing to buy per week from a retail chain at a price 9,000 0.1p+1' of $p is given by x=- Answer parts (A), (B), and (C). 4500- x= 9,000 10 ≤p≤70. 0.1p+1 Q Demand 2250- 40 Price (dollars) 80 dx (A) Find dp dx dp
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