Find the intervals of increase and decrease for the given function. f (x) = x3 - 27x - 7 O f (X) is increasing for -3 < x < 3; f (x) is decreasing for x < -3 and x > 3. 27 f (x) is increasing for x > ;f (x) is decreasing 2 27 for x < 2 O f (x) is increasing for x < -3 and x > 3; f (x) is decreasing for -3 < x < 3.

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
ChapterP: Prerequisites
SectionP.6: Analyzing Graphs Of Functions
Problem 4ECP
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Find the intervals of increase and decrease
for the given function.
f (x) = x3 - 27x - 7
O f (x) is increasing for -3 < x < 3; f (x) is
decreasing for x < -3 and x > 3.
27
f (x) is increasing for x >
;f (x) is decreasing
2
27
for x <
2
O f (x) is increasing for x < -3 and x > 3; f (x) is
decreasing for -3 < x < 3.
27
f (x) is increasing for x <
;f (x) is decreasing
2
27
for x >
2
Transcribed Image Text:Find the intervals of increase and decrease for the given function. f (x) = x3 - 27x - 7 O f (x) is increasing for -3 < x < 3; f (x) is decreasing for x < -3 and x > 3. 27 f (x) is increasing for x > ;f (x) is decreasing 2 27 for x < 2 O f (x) is increasing for x < -3 and x > 3; f (x) is decreasing for -3 < x < 3. 27 f (x) is increasing for x < ;f (x) is decreasing 2 27 for x > 2
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