Alg 3 - Functions, Equations, and Graphs - Relations and Functions

Representing Relations of data by Ordered Pairs

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Representing Relations of data by Mapping Diagram

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Representing Relations of data by Table of Values

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Representing Relations of data by a Graph

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Is this mapping a function or not a function? 

• Function
• Not a Function 

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each x-value has only one y-value paired with it.
• No, because the x-value 11 has two y-values pair with it.
• No, because each x-value has only one y-value paired with it.

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)
• (3,4) (4,-3) (7,4) (3, 8)
• (6,-5) (7, -3) (8, -1) (9, 1)
• (2, -2) (5, 9) (5, -7) (1, 4)

Is this graph a function or not a function? 

• Function 
• Not a Function

Is this graph a function or not a function? 

• Function
• Not a Function 

Is this graph a function or not a function? 

• Function 
• Not a Function