Let G be k-critical graph with respect to vertex-arboricity (k>=3). Prove that for each vertex v of G, the graph G-v is not (k-1)-critical with respect to vertex-arboricity.
Graph of f(x)=ax^2+bx+c
- What is the significance of c to the graph of f(x)=ax^2+bx+c? In other words, how do a,b,c give the vertex?
Graph the parabola - Please assist with the attached problem.
y = -1/4x^2 + x - 6
Identify the vertex and four additional points on each side of the vertex
Graph parabola - Graph the parabola:
y=2x^2 - 4x - 2
To graph the parabola, plot the vertex and four additional points, two on each side of the vertex.
Vertex of a Parabola - I need to understand how to find the vertex of a parabola two ways. Show examples