SOLUTION: Why does y=3 represent a function, but x=3 does not?

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Question 119213This question is from textbook McDougal Littell Algebra II
: Why does y=3 represent a function, but x=3 does not? This question is from textbook McDougal Littell Algebra II

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Remember, f(x) is used in "y"s place. Since f(x) is a function, then in this case y is also a function. However, x is just a variable and not a function.