Bell Ringer-5/23/2019 You type in “white sneakers” on google and 1,002 different brands come up. Is this a relation or a function?

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Relations and Functions

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Presentation transcript:

Bell Ringer-5/23/2019 You type in “white sneakers” on google and 1,002 different brands come up. Is this a relation or a function?

5/23/2019 Homework: pg 49-50 1-8, and 21-32 odd 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 49-50 1-8, and 21-32 odd

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

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

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

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)

Function or not a function?

Function or not a function?

Function or not a function?

Function or not a function?

Function or not a function?

Is this relation a function?

Vocab Review Domain: Inputs of the function Range: Outputs

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?

Homework Homework: page 49 1-8 an 20-26