Please bobpursley help.algebra 2
posted by logan .
This is a critical question..
Why does y=3 represent a function and x=3 does not

Please bobpursley help.algebra 2 
bobpursley
The first is a function of x as there is one y value for all x. At any x, y=3.
The second is not a function because there is no value of y defined for any x. At x=3, y can be any value, and at other x values, y is undefined.
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