f(x) = x3 – 4.5x? – 12x +2 a) Determine the intervals on which f is concave up and concave down. f is concave up on: (-INF,-1),(-1,4) f is concave down on: (4,INF) b) Based on your answer to part (a), determine the inflection points of f. Each point should be entered as an ordered pair (that is, in the form (x, y)). 1.5 (Separate multiple answers by commas.) c) Find the critical numbers of f and use the Second Derivative Test, when possible, to determine the relative extrema. List only the x-coordinates. Relative maxima at: (Separate multiple answers by commas.) Relative minima at: (Separate multiple answers by commas.)

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 98E: Determine if the statemment is true or false. If the statement is false, then correct it and make it...
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f(x) = x3 – 4.5x? – 12x +2
a) Determine the intervals on which f is concave up and concave down.
f is concave up on: (-INF,-1),(-1,4)
f is concave down on: (4,INF)
b) Based on your answer to part (a), determine the inflection points of f. Each point should be entered as an ordered pair (that is, in the form (x, y)).
1.5
(Separate multiple answers by commas.)
c) Find the critical numbers of f and use the Second Derivative Test, when possible, to determine the relative extrema. List only the x-coordinates.
Relative maxima at:
(Separate multiple answers by commas.)
Relative minima at:
(Separate multiple answers by commas.)
Transcribed Image Text:f(x) = x3 – 4.5x? – 12x +2 a) Determine the intervals on which f is concave up and concave down. f is concave up on: (-INF,-1),(-1,4) f is concave down on: (4,INF) b) Based on your answer to part (a), determine the inflection points of f. Each point should be entered as an ordered pair (that is, in the form (x, y)). 1.5 (Separate multiple answers by commas.) c) Find the critical numbers of f and use the Second Derivative Test, when possible, to determine the relative extrema. List only the x-coordinates. Relative maxima at: (Separate multiple answers by commas.) Relative minima at: (Separate multiple answers by commas.)
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