OpenStax, Contemporary Mathematics §12.4 Navigating Graphs · Example 2 · Combinatorics · Graph theory

Navigating Graphs · Example 2

Find a coloring of the graph in the figure, which uses four colors or fewer. Use the resulting coloring as a guide to recolor the map in the figure. How many colors did you use? Does this support the conclusion of the Four-Color Theorem? If so, how?

Its source prints no answer for this problem, so there's nothing to check against.

~5 minWritten answer · check your work with Lemma

OpenStax, Contemporary Mathematics · §12.4 Navigating Graphs · Example 2

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.

Your first check today doesn't need an account.

Your photos and PDFs are read once and not stored — only the transcription is kept.