e function f(x) = 6x + 9x. For this function there are fou , (A, B),(B, C), and (C, o) where A, and C are the critical В. %3D
e function f(x) = 6x + 9x. For this function there are fou , (A, B),(B, C), and (C, o) where A, and C are the critical В. %3D
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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
Transcribed Image Text:Question 4
く
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Consider the function f(x) = 6x + 9 . For this function there are four important open intervals:
(- 00, A), (A, B),(B, C), and (C, o) where A, and C are the critical numbers and the function is not
defined at B.
|
Find A
and B
and C
For each of the following open intervals, tell whether f(x) is increasing (type in INC) or decreasing (type in
DEC).
(- 0, A):
|
(A, B):
(B, C):
(C, ):
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