PROBLEM 6 Part 1. Give the adjacency matrix for the graph G as pictured below: Figure 2: A graph shows 6 vertices and 9 edges. The vertices are 1, 2, 3, 4, 5, and 6, represented by circles. The edges between the vertices are represented by arrows, as follows: 4 to 3; 3 to 2; 2 to 1; I to 6; 6 to 2; 3 to 4; 4 to 5; 5 to 6; and a self loop on vertex 5. Part 2. A directed graph G has 5 vertices, numbered 1 through 5. The 5 × 5 matrix A is the adjacency matrix for G. The matrices A? and A are given below. 0 1 0 0 0 O 0 0 1 0 0 0 1 0 0 0 0 1 0 0 1 0 0 1 10 1 1 0 0 0 0 O o 1 0 0 O 0 0 0 10 0 0 1 10 1 1 1 0 10 A² = A³ = Use the information given to answer the questions about the graph G. (a) Which vertices can reach vertex 2 by a walk of length 3? (b) Is there a walk of length 4 from vertex 4 to vertex 5 in G? (Hint: A= A² A²)

Advanced Engineering Mathematics
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ISBN:9780470458365
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Chapter2: Second-order Linear Odes
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See attached, answer part 2

**Problem 6**

**Part 1.** Give the adjacency matrix for the graph G as pictured below:

![Graph with 6 vertices and 9 edges](image.png)

*Figure 2:* A graph shows 6 vertices and 9 edges. The vertices are 1, 2, 3, 4, 5, and 6, represented by circles. The edges between the vertices are represented by arrows, as follows: 4 to 3; 3 to 2; 2 to 1; 1 to 6; 6 to 2; 3 to 4; 4 to 5; 5 to 6; and a self-loop on vertex 5.

**Part 2.** A directed graph G has 5 vertices, numbered 1 through 5. The \(5 \times 5\) matrix \(A\) is the adjacency matrix for G. The matrices \(A^2\) and \(A^3\) are given below.

\[
A^2 = \begin{bmatrix}
0 & 1 & 0 & 0 & 0 \\
0 & 0 & 1 & 0 & 0 \\
1 & 0 & 0 & 0 & 0 \\
1 & 0 & 0 & 1 & 0 \\
0 & 1 & 0 & 1 & 0 
\end{bmatrix}
\]

\[
A^3 = \begin{bmatrix}
1 & 0 & 0 & 0 & 0 \\
0 & 1 & 0 & 0 & 0 \\
0 & 1 & 0 & 0 & 0 \\
0 & 0 & 1 & 0 & 0 \\
1 & 1 & 0 & 1 & 0
\end{bmatrix}
\]

Use the information given to answer the questions about the graph G.

(a) Which vertices can reach vertex 2 by a walk of length 3?

(b) Is there a walk of length 4 from vertex 4 to vertex 5 in G? (Hint: \(A^4 = A^2 \cdot A^2\))
Transcribed Image Text:**Problem 6** **Part 1.** Give the adjacency matrix for the graph G as pictured below: ![Graph with 6 vertices and 9 edges](image.png) *Figure 2:* A graph shows 6 vertices and 9 edges. The vertices are 1, 2, 3, 4, 5, and 6, represented by circles. The edges between the vertices are represented by arrows, as follows: 4 to 3; 3 to 2; 2 to 1; 1 to 6; 6 to 2; 3 to 4; 4 to 5; 5 to 6; and a self-loop on vertex 5. **Part 2.** A directed graph G has 5 vertices, numbered 1 through 5. The \(5 \times 5\) matrix \(A\) is the adjacency matrix for G. The matrices \(A^2\) and \(A^3\) are given below. \[ A^2 = \begin{bmatrix} 0 & 1 & 0 & 0 & 0 \\ 0 & 0 & 1 & 0 & 0 \\ 1 & 0 & 0 & 0 & 0 \\ 1 & 0 & 0 & 1 & 0 \\ 0 & 1 & 0 & 1 & 0 \end{bmatrix} \] \[ A^3 = \begin{bmatrix} 1 & 0 & 0 & 0 & 0 \\ 0 & 1 & 0 & 0 & 0 \\ 0 & 1 & 0 & 0 & 0 \\ 0 & 0 & 1 & 0 & 0 \\ 1 & 1 & 0 & 1 & 0 \end{bmatrix} \] Use the information given to answer the questions about the graph G. (a) Which vertices can reach vertex 2 by a walk of length 3? (b) Is there a walk of length 4 from vertex 4 to vertex 5 in G? (Hint: \(A^4 = A^2 \cdot A^2\))
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