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Learning Target

Learning Target. Students will be able to: Identify functions and f ind the domain and range of relations and functions. Relationships can be represented by a set of ordered pairs called a relation. SCORING SYSTEMS FOR SOME TRACK MEETS. PLACE. POINTS. Table. x y.

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Learning Target

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  1. Learning Target Students will be able to: Identify functions and find the domain and range of relations and functions.

  2. Relationships can be represented by a set of ordered pairs called arelation. SCORING SYSTEMS FOR SOME TRACK MEETS PLACE POINTS

  3. Table x y Express the relation {(2, 3), (4, 7), (6, 8)} as a table, as a graph, and as a mapping diagram. y x

  4. Table x y Express the relation {(1, 3), (2, 4), (3, 5)} as a table, as a graph, and as a mapping diagram. y x

  5. The domain of a relation is the set of first coordinates (or x-values) of the ordered pairs. The range of a relation is the set of second coordinates (or y-values) of the ordered pairs. The domain of the track meet scoring system is {1, 2, 3, 4}. The range is {5, 3, 2, 1}.

  6. 6 –4 5 x y –1 2 1 1 0 1 4 4 8 1 Give the domain and range of each relation. x y

  7. A function is a special type of relation that pairs each domain value with exactly one range value.

  8. Give the domain and range of the relation. Tell whether the relation is a function. Explain. {(3, –2), (5, –1), (4, 0), (3, 1)} y x

  9. Example 3B: Identifying Functions Give the domain and range of the relation. Tell whether the relation is a function. Explain. y x –4 2 –8 1 4 5

  10. Give the domain and range of the relation. Tell whether the relation is a function. Explain.

  11. Give the domain and range of the relation. Tell whether the relation is a function. Explain. {(8, 2), (–4, 1), (–6, 2),(1, 9)}

  12. Give the domain and range of the relation. Tell whether the relation is a function. Explain. y x HW pp.239-241/15-20,22-24,27,32-34

  13. Warm Up Generate ordered pairs for the function y = x + 3 for x = –2, –1, 0, 1, and 2. Graph the ordered pairs. (–2, 1) (–1, 2) (0, 3) (1, 4) (2, 5)

  14. –8 –8 –2 –2 –10 –10 –6 –6 –4 –4 0 0 2 2 4 4 6 6 8 8 10 10 Solve the inequality and graph the solutions. x + 12 < 20 d – 5 > –7

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