
Calculus: Early Transcendentals
8th Edition
ISBN: 9781285741550
Author: James Stewart
Publisher: Cengage Learning
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Transcribed Image Text:7 The bookstore sells 9 keychains in a day if the unit price is $2. If the bookstore
increases the price by a dollar, it sells one fewer keychain daily. Suppose the
demand function is linear. The supply function for keychains is q(p) 2vp+4
where p is the unit price. Find the price at which there is no shortage nor
surplus
8) The bookstore decideds to sell bobbleheads, and each bobblehead costs the
bookstore $2 and there is no fixed cost. Suppose the cost function is linear.
Suppose the demand function for bobbleheads is qp) p+14p + 24 where p
is the unit price. Find the price at which the bookstore breaks even.
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