Graphing Linear Functions

plac6636

New member
Joined
Aug 29, 2005
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19
My question asks "is Y = 20X + 9.1Z linear". If graphed it and since both X and Z can be any number...I'm getting that it is NOT linear...but I just feel like this is too easy of a question...am I thinking of it a wrong way?
 
Why did you post this twice? Don't do that.
 
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