1.   p = −x2 + 15  Determine the quantity demanded when the unit price is set at p = 6. x =  ? thousand units 2.  In the pair of supply and demand equations below, where x represents the quantity demanded in units of a thousand and p the unit price in dollars, find the equilibrium quantity and the equilibrium price. p = −x2 − 4x + 75 and p = 5x + 23   equalibrium quantity    ? thousand units equilibrium price          ? Dollars

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter6: Systems Of Equations And Inequalities
Section6.2: Two-variable Linear Systems
Problem 9ECP
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1.   p = −x2 + 15

 Determine the quantity demanded when the unit price is set at p = 6.

x =  ? thousand units

2.  In the pair of supply and demand equations below, where x represents the quantity demanded in units of a thousand and p the unit price in dollars, find the equilibrium quantity and the equilibrium price.

p = −x2 − 4x + 75 and p = 5x + 23
 
equalibrium quantity    ? thousand units

equilibrium price          ? Dollars

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