1. The problem asks to identify the given sets and ordered pairs. 2. The first given is \{1, 2, 3, 4, 5, 6, 7, 8, 9\}, which is a set of numbers from 1 to 9. A set is a collection of distinct elements enclosed in curly braces, and order does not matter. 3. The second given is (1, 2) (3, 4) (5, 6) (7, 8) (9, 10), which are ordered pairs. Ordered pairs are written with parentheses and the order of elements matters. Each pair represents a relation or mapping from the first element to the second. 4. To summarize: - \{1, 2, 3, 4, 5, 6, 7, 8, 9\} is a set of numbers. - (1, 2), (3, 4), (5, 6), (7, 8), (9, 10) are ordered pairs. 5. Sets are unordered collections without repeated elements. 6. Ordered pairs are used to represent relations or functions where order is important. Final answer: The first is a set of numbers 1 through 9, and the second is a list of ordered pairs representing relations between numbers.