At what interval is y=2r4- 4x2 concave upward? U x> 3 x< -- U 3 3 くxく 3 3 3 Jx> 3 3

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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At what interval is y=2x4- 4x2 concave upward?
U x>
3
x< - - U
3
3
< x<
3
V3
X< -
- U x>
>-
3
3
3
3
Transcribed Image Text:At what interval is y=2x4- 4x2 concave upward? U x> 3 x< - - U 3 3 < x< 3 V3 X< - - U x> >- 3 3 3 3
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