Explanation Given: The differential equation d W d t = 5 W − 20 . Concept used: A function W ( t ) will be increasing if d W d t > 0 and will be decreasing if d W d t < 0 . Calculation: For, W = 10 d W d t = 5 W − 20 d W d t = 5 ( 10 ) − 20 = 50 − 20 = 30 So, d W d t > 0 W is increasing for W = 10 To determine (b) To find: At which value of W ,rate of change of W becomes 0.

6th Edition

ISBN: 9781119275565

Author: Hughes-Hallett

Publisher: WILEY

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Question

Chapter 9.1, Problem 13P

To determine

(a)

To find:

W is increasing or decreasing for the given values of W.

To determine

(b)

To find:

At which value of W ,rate of change of W becomes 0.

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Chapter 9.1, Problem 12P

Chapter 9.1, Problem 14P

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