Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN: 9781133382119
Author: Swokowski
Publisher: Cengage
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Question
The following questions are mostly on the topic of graph complements.
(a) Let G be a graph with ∆(G) ≥ r, where r is a positive integer. Show that either G
contains a triangle or ̄G contains a Kr.
(b) Let G be a graph of order n which contains no triangles.
(i) Assume that n = 9. Show that ̄G contains a K4.
(ii) Assume that n = 8. Must ̄G contain a K4 ? Justify your answer.
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Similar questions
- a If a graph is symmetric with respect to the x-axis and (a,b) is on the graph, then (,) is also on the graph. b If a graph is symmetric with respect to the y-axis and (a,b) is on the graph, then (,) is also on the graph. c If a graph is symmetric about the origin and (a,b) is on the graph, then (,) is also on the graph.arrow_forwardUsing the table from Exercise 5, sketch the graph of 2x+3y=12.arrow_forwardUse symmetry to sketch the graph of xy2=1.arrow_forward
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