Perform elimination on the following system of equations: 2х + 5у — 6 – 4x + 2y What values do you got for the pivots? The first pivot is 2 and the second pivot is What is the augmented matrix that corresponds to the original system of equations above? 2 5 -4 2 What result do you get from performing elimination on the augmented matrix? What are the solutions you obtain for x and y after performing back substitution? x = and y = 1

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter6: Linear Systems
Section6.CT: Chapter Test
Problem 9CT
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Perform elimination on the following system of equations:
2х + 5y
- 4x + 2y = 0
-
What values do you got for the pivots? The first pivot is 2
and the second pivot is
What is the augmented matrix that corresponds to the original
system of equations above?
5
6.
-4
What result do you get from performing elimination on the
augmented matrix?
What are the solutions you obtain for x and y after performing back
substitution?
and y
1
X =
Transcribed Image Text:Perform elimination on the following system of equations: 2х + 5y - 4x + 2y = 0 - What values do you got for the pivots? The first pivot is 2 and the second pivot is What is the augmented matrix that corresponds to the original system of equations above? 5 6. -4 What result do you get from performing elimination on the augmented matrix? What are the solutions you obtain for x and y after performing back substitution? and y 1 X =
Part II
Suppose A is a matrix with two rows. The matrix product [2 3]A can
be thought of as producing a linear combination of the rows of A.
The result is
times the first row of A plus
times
the second row of A.
Suppose B is a matrix with 3 rows. What matrix E will subtract 5
times row 2 from row 3 of B when you compute EB? E =
1
What is the inverse of E? E
What matrix P will exchange rows 2 and 3 of B when you compute
PB? P =
Transcribed Image Text:Part II Suppose A is a matrix with two rows. The matrix product [2 3]A can be thought of as producing a linear combination of the rows of A. The result is times the first row of A plus times the second row of A. Suppose B is a matrix with 3 rows. What matrix E will subtract 5 times row 2 from row 3 of B when you compute EB? E = 1 What is the inverse of E? E What matrix P will exchange rows 2 and 3 of B when you compute PB? P =
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