A self-published author found that when she sold her debut novel, as an e-book, at a price of $3.99, she sold 19 copies in one day. When she lowered the price to $1.99, she sold 43 copies in one day. Assuming the relationship between the price and the number sold is linear, and that she can set any price she chooses as long as it is greater than or equal to zero, what price will maximize her daily revenue? Round your answer to the nearest cent

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter1: Equations And Graphs
Section1.3: Lines
Problem 92E
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A self-published author found that when she sold her debut novel,
as an e-book, at a price of $3.99, she sold 19 copies in one day. When she lowered the price to
$1.99, she sold 43 copies in one day. Assuming the relationship between the price and the
number sold is linear, and that she can set any price she chooses as long as it is greater than or
equal to zero, what price will maximize her daily revenue? Round your answer to the nearest
cent

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