Draw a graph with numbered nodes and numbered, directed edges whose incidence matrix is A || 1400 -1 1 -1 0 0 0 1 0 1 0 -1 0-1

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter3: Matrices
Section3.7: Applications
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By hand solution needed Kindly solve all three parts correctly in the order to get positive feedback please show neat and clean work for it
A. Loops and Trees
Draw a graph with numbered nodes and numbered, directed edges whose incidence matrix
is
A =
(i) b₁ =
-1 1
-1 0
0 0
1 0
01
0 -1
00 -1 1
1. Describe which edges form loops in your graph. Use these to find a basis for the left
nullspace of your graph.
(ii) b₂ =
2. Does the system Ar = b have solution(s) for the following choices of right-hand side
vectors b? Justify your answer.
(iii) b3 =
2
3. For any of the systems in the previous question, which of them have infinitely many
solutions? Find a column vector representation of those solutions.
Transcribed Image Text:A. Loops and Trees Draw a graph with numbered nodes and numbered, directed edges whose incidence matrix is A = (i) b₁ = -1 1 -1 0 0 0 1 0 01 0 -1 00 -1 1 1. Describe which edges form loops in your graph. Use these to find a basis for the left nullspace of your graph. (ii) b₂ = 2. Does the system Ar = b have solution(s) for the following choices of right-hand side vectors b? Justify your answer. (iii) b3 = 2 3. For any of the systems in the previous question, which of them have infinitely many solutions? Find a column vector representation of those solutions.
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