SOLUTION: y=9 is a function or not

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Question 1003432: y=9 is a function or not
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Yes it is.
For every value of x, there is only one value of y. It just hapens to be 9 each time.
Plus, y = 9 is a horizontal line. Horizontal lines are functions.