Concept explainers
Here we celebrate the power of algebra as a powerful way of finding unknown quantities by naming them, of expressing infinitely many relationships and connect ions clearly and succinctly, and of uncovering pattern and structure.
More puzzling. Three of your friends tell you they’ve seen a graph chalked in front of the math building. Leonhard says the graph is planar, with no loops or multiple edges. Kazmir says the graph has 50 vertices. Kenneth says the graph has 150 edges. If you know that Leonhard and Kazmir are correct, what’s your reaction to Kenneth? If you know Leonhard and Kenneth are correct, what’s your rcaction to Kazmir?
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Check out a sample textbook solutionChapter 6 Solutions
The Heart of Mathematics: An Invitation to Effective Thinking
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