1. Bell Ringer-4/13/2019
Is this a function or a relation?

2. 4/13/2019 Homework: pg 49-50 1-8 and 20-26 Objective Agenda
Recognize inputs/outputs of functions
Determine if an expression is a function or relation
Calculate the output of functions
Bell Ringer
New Notes
Examples
Homework: pg and 20-26

3. Identify whether each list of ordered pair represents a function…Why or why not?
{(5,4) (6,3) (7,2)}

4. Identify whether each list of ordered pair represents a function…Why or why not?
{(4,5) (4,3) (5,2)}

5. Identify whether each list of ordered pair represents a function…Why or why not?
{(5,4) (6,4) (7,4)}

6. Using POSITIVE integers, write two relations as a list of ordered pairs. One that is a function, one that is not. Graph.
Function!
NOT A FUNCTION!
(-2, 2) (-1,1) (0,0) (1,1) (2,2)
(0,0) (-1,1) (-2,2) (1,1) (-1,1)

7. Function or not a function?

8. Function or not a function?

9. Function or not a function?

10. Function or not a function?

11. Function or not a function?

12. Vocab Review
Domain: Inputs of the function
Range: Outputs

13. Consider a vending machine where inserting 25 cents dispenses 1 pencil, inserting 50 cents dispenses 2 pencils, and so forth up to and including 10 pencils.
What is the domain in this situation?
What is the range in this situation?

14. Homework
Homework: page an 20-26