Let f(x) = -a – 5x + 9x + 2. Find the open intervals on which f is concave up (down). Then determine the a-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 a =

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
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Chapter2: Functions And Graphs
Section2.1: Functions And Function Notation
Problem 26E
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Let f(x) = -x4 – 5x3 + 9x + 2. 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 – 5x3 + 9x + 2. 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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