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April 18, 2014

Homework Help: Discreet Mathematics

Posted by Chuck on Saturday, October 20, 2012 at 4:02am.

Part I: Suppose you are developing a statistical database in which information about professional football teams and records are stored.

Consider the following 2 sets of data that list football teams and quarterbacks:

D = {Jets, Giants, Cowboys, 49’ers, Patriots, Rams, Chiefs}
Q = {Tom Brady, Joe Namath, Troy Aikman, Joe Montana, Eli Manning}
1.Using D as the domain and Q as the range, show the relation between the 2 sets, with the correspondences based on which players are (or were) a member of which team(s). (Show the relation in the following forms:
◦Set of ordered pairs
◦Directional graph
2.Is the relation a function? Explain.
3.Now, use set Q as the domain, and set D as the range. Show the relation in the following forms:
◦Set of ordered pairs
◦Directional graph
4.Is the relation a function? Explain.

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