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Let f(x) = -x4-9x³+2x+8. Find the open intervals on which is concave up (down). Then determine the -coordinates of all inflection points of 1. 2. 3. is concave up on the intervals = is concave down on the intervals The inflection points occur at = Notes: Do not enter ANY spaces! Use inf for and -inf forco. In the first two, your answer should either be a single interval, such as (0,1), a comma separated list of intervals, such as (-inf, 2), (3,4), or the word "none". In the last one, your answer should be a comma separated list of values or the word "none".

Let f(x) = -x4-9x³+2x+8. Find the open intervals on which is concave up (down). Then determine the -coordinates of all inflection points of 1. 2. 3. is concave up on the intervals = is concave down on the intervals The inflection points occur at = Notes: Do not enter ANY spaces! Use inf for and -inf forco. In the first two, your answer should either be a single interval, such as (0,1), a comma separated list of intervals, such as (-inf, 2), (3,4), or the word "none". In the last one, your answer should be a comma separated list of values or the word "none".

Calculus: Early Transcendentals
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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Let f(x) = -x4-9x³+2x+8 . Find the open intervals on which is concave up (down). Then determine the -coordinates of all inflection points of 1. 2. 3. is concave up on the intervals is concave down on the intervals The inflection points occur at Notes: Do not enter ANY spaces! Use inf for and -inf for - ∞ . In the first two, your answer should either be a single interval, such as (0,1), a comma separated list of intervals, such as (-inf, 2), (3,4), or the word "none". In the last one, your answer should be a comma separated list of values or the word "none".
Transcribed Image Text:Let f(x) = -x4-9x³+2x+8 . Find the open intervals on which is concave up (down). Then determine the -coordinates of all inflection points of 1. 2. 3. is concave up on the intervals is concave down on the intervals The inflection points occur at Notes: Do not enter ANY spaces! Use inf for and -inf for - ∞ . In the first two, your answer should either be a single interval, such as (0,1), a comma separated list of intervals, such as (-inf, 2), (3,4), or the word "none". In the last one, your answer should be a comma separated list of values or the word "none".
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