please help with the following question. it is 1 question, just different parts. part a and part b

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.5: Graphs Of Functions
Problem 30E
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please help with the following question. it is 1 question, just different parts. part a and part b

Determine the open intervals on which the graph is concave upward or concave downward.
x - 7
f(x) =
бх + 5
concave upward
DNE
concave downward
DNE
Transcribed Image Text:Determine the open intervals on which the graph is concave upward or concave downward. x - 7 f(x) = бх + 5 concave upward DNE concave downward DNE
Find the point of inflection of the graph of the function. (If an answer does not exist, enter DNE.)
f(x) %3 х3 - 9х2+ 23х - 15
(х, у)
DNE
Describe the concavity. (Enter your answers using interval notation. If an answer does not exist, enter DNE.)
concave upward
DNE
concave downward
DNE
Transcribed Image Text:Find the point of inflection of the graph of the function. (If an answer does not exist, enter DNE.) f(x) %3 х3 - 9х2+ 23х - 15 (х, у) DNE Describe the concavity. (Enter your answers using interval notation. If an answer does not exist, enter DNE.) concave upward DNE concave downward DNE
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