Identifying functions
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Intros
Examples
Lessons
 Are the following sets of ordered pairs functions?
 Which of the following is a function?
 Using the table of values to answer the questions below:

X value 5 3 1 1 3 Y value 3 1 1 2 3 
X value 5 3 1 1 3 Y value 2 2 1 2 3 
X value 5 5 1 1 3 Y value 2 3 2 3 3
