Question
Asked Sep 2, 2019

The quantity demanded x for a certain brand of MP3 players is 300 units when the unit price p is set at $100. The quantity demanded is 1300 units when the unit price is $50. Find the demand equation.
p =

 
 



Sketch its graph. (Sketch the curve as a segment.)

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Expert Answer

Step 1
m this Ouasion, * ^ equired to
bared en the
ind
the demand eaualon
Iiven informatien
Given:
quantitydemanded denoted by
Price i dons ted byp
X
UShen price i $
loo m uanlit damanud wos 300 unih
CShon price is$50 then Quanti dimandd
was 13c0 unito
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m this Ouasion, * ^ equired to bared en the ind the demand eaualon Iiven informatien Given: quantitydemanded denoted by Price i dons ted byp X UShen price i $ loo m uanlit damanud wos 300 unih CShon price is$50 then Quanti dimandd was 13c0 unito

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Step 2
x(50)Y(leo) (e- loo)
w
la0
50
300
1300
P -10)
30o
50
P-l00)
300
-5
-20P-0)
OC 300
1
X-300
-20P 2oso
-2oP 200+300
20P 23c0
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x(50)Y(leo) (e- loo) w la0 50 300 1300 P -10) 30o 50 P-l00) 300 -5 -20P-0) OC 300 1 X-300 -20P 2oso -2oP 200+300 20P 23c0

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