NOTE: When using interval notation in WeBWork, remember that: You use 'INF' for ∞ and '-INF' for -∞. And use 'U' for the union symbol. Enter DNE if an answer does not exist. a) Find the critical numbers of f. b) Determine the intervals on which f is increasing and decreasing. f is increasing on: f is decreasing on: f(x) = x² - 9x (Separate multiple answers by commas.) c) Use the First Derivative Test to determine whether each critical point is a relative maximum, minimum, or neither. Relative maxima occur at x = (Separate multiple answers by commas.) Relative minima occur at x = (Separate multiple answers by commas.)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.6: Inequalities
Problem 80E
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NOTE: When using interval notation in WeBWork, remember that:
You use 'INF' for ∞ and '-INF' for -∞.
And use 'U' for the union symbol.
Enter DNE if an answer does not exist.
a) Find the critical numbers of f.
b) Determine the intervals on which f is increasing and decreasing.
f is increasing on:
f is decreasing on:
f(x) = x² - 9x
(Separate multiple answers by commas.)
c) Use the First Derivative Test to determine whether each critical point is a relative maximum, minimum, or neither.
Relative maxima occur at x =
(Separate multiple answers by commas.)
Relative minima occur at x =
(Separate multiple answers by commas.)
Transcribed Image Text:NOTE: When using interval notation in WeBWork, remember that: You use 'INF' for ∞ and '-INF' for -∞. And use 'U' for the union symbol. Enter DNE if an answer does not exist. a) Find the critical numbers of f. b) Determine the intervals on which f is increasing and decreasing. f is increasing on: f is decreasing on: f(x) = x² - 9x (Separate multiple answers by commas.) c) Use the First Derivative Test to determine whether each critical point is a relative maximum, minimum, or neither. Relative maxima occur at x = (Separate multiple answers by commas.) Relative minima occur at x = (Separate multiple answers by commas.)
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