SOLUTION: Determine whether the equation x+y=9 defines y as a function of x.

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Question 707200: Determine whether the equation x+y=9 defines y as a function of x.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
x+y=9

y = 9 - x

y = -x + 9

This is a linear equation, which is definitely a function.

So y is a function of x.