The price P of gasoline increases to a maximum and then stays at a fixed price. What is the rate of change dp/dt and how is it changing at the time when the price reaches a maximum? a. dp/dt is negative at the maximum and is decreasing. b. dp/dt is equal to zero at the maximum and remains the same. c. dp/dt is positive at the maximum and is decreasing. d. dp/dt is negative at the maximum and is increasing.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section: Chapter Questions
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The price P of gasoline increases to a maximum and then stays at a fixed price. What is the rate of change dp/dt and how is it changing at the time when the price reaches a maximum?
a. dp/dt is negative at the maximum and is decreasing.
b. dp/dt is equal to zero at the maximum and remains the same.
c. dp/dt is positive at the maximum and is decreasing.
d. dp/dt is negative at the maximum and is increasing.

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