In a round-robin chess tournament, each player is paired with every other player once. The function,...

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In a round-robin chess tournament, each player is paired with every other player once. The function, shown below, models the number of chess games, N, that must be played in a round-robin tournament with x chess players. In a round-robin chess tournament with 12 players, a total of 66 games were played. Use this information to identify a point on the graph. N= x-x 2 The point on the graph is (Type an ordered pair.) Number of Games Played 70 60 50 40 30 20 10 1 2 3 4 5 6 7 8 9 10 11 12 Number of Players In a round-robin chess tournament, each player is paired with every other player once. The function, shown below, models the number of chess games, N, that must be played in a round-robin tournament with x chess players. In a round-robin chess tournament with 12 players, a total of 66 games were played. Use this information to identify a point on the graph. N= x-x 2 The point on the graph is (Type an ordered pair.) Number of Games Played 70 60 50 40 30 20 10 1 2 3 4 5 6 7 8 9 10 11 12 Number of Players