An office building is installing eight Wi-Fi transmitting stations.  Any stations within 200 feet of each other must transmit on different channels.  The engineers have a chart of the distance between between each pair of stations. Suppose that they draw a graph where each vertex represents a Wi-Fi station and an edge connects two vertices if the distance between the stations is 200 feet or less.  What would the chromatic number of the graph tell the engineers? Explain

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