1. Note #1 FUNCTION We will discuss the characteristics of functions and definitions of domain and range. I will decide if a relation is a function or not and explain.

2. Definition Facts/Characteristics ExamplesNon-Examples Word FUNCTION

3. 4 Different Representation of a Function: SET NOTATIONGRAPH TABLE MAPPING

4. A function is like a vending machine! INPUT OUTPUT

5. Domain vs. Range Domain Range

6. #1 Set Notation {(-2,3),(-1, 7),(0,-1),(7,6)} #2 Graph (-2,3) (-1,7) (0,-1) (7,6)

7. Vertical Line Test (Pencil Test) y x y x