A vertex of a geometric figure is defined as a point where two or more edges meet, making it a boundary point of that figure. However, not all boundary points are vertices; for example, on the edge of a shape, any point along the edge is a boundary point but does not qualify as a vertex unless it specifically represents a corner where edges converge. Thus, while every vertex is a boundary point, the reverse is not true, as boundary points can exist along edges without being vertices.
vertex* * * * *Yes.
All direct variation graphs are linear and they all go through the origin.
You can't trace this graph without going twice over the same edge. In this graph four vertices have degrees 3 (odd) and one has degree 4 (even). In graphs traceable without lifting pencil off the paper and without going over the same edge twice all degrees must be even (enter and leave), and only two degrees can be odd (leave the starting vertex and enter the ending one). Hope this helps.
A polyhedron with a polygon base and triangular sides that all meet at a common vertex is called a pyramid. The base can be any polygon (such as a triangle, square, or pentagon), and the triangular faces connect each edge of the base to the apex or common vertex at the top. Pyramids are named based on the shape of their base; for example, a pyramid with a square base is called a square pyramid.
No, Dijkstra's algorithm does not work for graphs with negative edge weights because it assumes all edge weights are non-negative.
The key differences between the Floyd-Warshall and Bellman-Ford algorithms are in their approach and efficiency. The Floyd-Warshall algorithm is a dynamic programming algorithm that finds the shortest paths between all pairs of vertices in a graph. It is more efficient for dense graphs with many edges. The Bellman-Ford algorithm is a single-source shortest path algorithm that finds the shortest path from a single source vertex to all other vertices in a graph. It is more suitable for graphs with negative edge weights. In summary, Floyd-Warshall is better for finding shortest paths between all pairs of vertices in dense graphs, while Bellman-Ford is more suitable for graphs with negative edge weights and finding shortest paths from a single source vertex.
In a regular pentagon, the lines of symmetry are drawn from each vertex to the midpoint of the edge directly opposite the vertex, so there are five in all.
No, Dijkstra's algorithm does not work with negative weights in graphs because it assumes that all edge weights are non-negative.
Try to picture a rectangular prism.An edge, first of all, is the line from a vertex to a vertex. The top has 4 edges and the bottom has 4. Then the connecting 4 edges, which is a total of 12 edges.
In graph theory, a vertex cover is a set of vertices that covers all edges in a graph. The concept of a vertex cover is related to the existence of a Hamiltonian cycle in a graph because if a graph has a Hamiltonian cycle, then its vertex cover must include at least two vertices from each edge in the cycle. This is because a Hamiltonian cycle visits each vertex exactly once, so the vertices in the cycle must be covered by the vertex cover. Conversely, if a graph has a vertex cover that includes at least two vertices from each edge, it may indicate the potential existence of a Hamiltonian cycle in the graph.
All graphs are graphical graphs because if they were not graphical graphs they would not be graphs!
no. a sphere has no sides at all. no sides,no vertex.
vertex* * * * *Yes.
A collection of languages that can be solved using a nondeterministic turing machine that runs in O(logn) space. For example PATH (the language of all graphs that have a path between vertix s and vertix t) is in NL.
A shape with one vertex, one edge, and two faces is called a cone. The vertex is the point where the edges meet, the edge is the line where the faces meet, and the faces are the flat surfaces of the shape. In the case of a cone, one face is the circular base and the other face is the curved surface.
All direct variation graphs are linear and they all go through the origin.