Consider the following. -x³ + 4, -x² + 4x, Find the critical numbers. (Hint: Check for discontinuities.) (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) x = increasing y = Find the open intervals on which the function is increasing or decreasing. (Enter your answers using interval notation. If an answer does not exist, enter DNE.) decreasing X ≤0 X>0 Sketch the graph of the function to verify your results. y 8 7 6 5 in 3 2 1 -3 -2 -1 1 2 3 4 -1 -2 6 -6 -5 -4 -3 -2 -1 y 8 7 6 44 3 2 1 -1 -2- 1 2 3 X Q
Consider the following. -x³ + 4, -x² + 4x, Find the critical numbers. (Hint: Check for discontinuities.) (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) x = increasing y = Find the open intervals on which the function is increasing or decreasing. (Enter your answers using interval notation. If an answer does not exist, enter DNE.) decreasing X ≤0 X>0 Sketch the graph of the function to verify your results. y 8 7 6 5 in 3 2 1 -3 -2 -1 1 2 3 4 -1 -2 6 -6 -5 -4 -3 -2 -1 y 8 7 6 44 3 2 1 -1 -2- 1 2 3 X Q
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter3: Polynomial And Rational Functions
Section: Chapter Questions
Problem 11T: Consider the following rational functions: r(x)=x2x22x1 s(x)=x2+4x3+27 t(x)=x+2x39x u(x)=x225x2+x6...
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Question
Please show work. thank you
Transcribed Image Text:Consider the following.
-x³ + 4,
-x² + 4x,
Find the critical numbers. (Hint: Check for discontinuities.) (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.)
x =
increasing
Find the open intervals on which the function is increasing or decreasing. (Enter your answers using interval notation. If an answer does not exist, enter DNE.)
decreasing
y =
O
Sketch the graph of the function to verify your results.
y
-3 -2 -1
8
7
6
5
44
3
2
1
X ≤0
X>0
-1
-2
1
2
3
I
4
L
5
6
-6 -5 -4
-3 -2 -1
2006 A
y
8
7
44
3
2
1
-1
-2¹
1
2
3
X
G
Transcribed Image Text:Sketch the graph of the function to verify your results.
y
I
L
-3 -2 -1
- 6
-5
8
4
7
6
5
49
3
2
1
-1
-2
L
1
2
-3 -2 -1
3 4
6
5
+
3
N
-1
-2
L
- 3
1
5
2
6
3
X
X
-6 -5
-3
- 2
-4
-1
y
6
5
TH
3
2
3 -2
-1
-2
-3
1
-1
2
y
8
7
6
LO
49
3
2
1
-1
-24
3
1
4
2 3
5 6
X
×
x
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Part A is incorrect. I put in 0, it marked me as wrong. I also tried these combinations for answers that were also wrong:
- 0
- 0, 2
- 2
-Does Not Exist
These are all wrong .what is the correct answer?
Solution
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