Let f(æ) = -xª – 5x³ + 4x – 7. Find the open intervals on which f is concave up (down). Then determine the x-coordinates of all inflectio: points of f. Your first two answers should be in interval notation. Your last answer should be a number or a list of numbers, separated by commas. 1. f is concave up on the interval(s) 2. f is concave down on the interval(s) 3. The inflection point(s) occur at æ =

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 – 5æ³ + 4x – 7. Find the open intervals on which f is concave up (down). Then determine the x-coordinates of all inflection
points of f.
Your first two answers should be in interval notation.
Your last answer should be a number or a list of numbers, separated by commas.
1. f is concave up on the interval(s)
2. f is concave down on the interval(s)
3. The inflection point(s) occur at x =
Transcribed Image Text:Let f(x) = -x4 – 5æ³ + 4x – 7. Find the open intervals on which f is concave up (down). Then determine the x-coordinates of all inflection points of f. Your first two answers should be in interval notation. Your last answer should be a number or a list of numbers, separated by commas. 1. f is concave up on the interval(s) 2. f is concave down on the interval(s) 3. The inflection point(s) occur at x =
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