College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter3: Functions
Section3.3: More On Functions; Piecewise-defined Functions
Problem 84E
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Transcribed Image Text:Which statement is true about a function f(x), where f'(x)=2x² ++?
X
f is increasing for x < -1.260 because f '(x) < 0 for x < -1.260
f is increasing for x < -1.260 because f'(x) > 0 for x < -1.260
f is decreasing for x > 0 because f'(x) < 0 for x > 0
f is decreasing for x > 0 because f'(x) > 0 for x > 0
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