Linear model or not linear?

#1
This is a question from a past paper exam.
i is linear, iii is not linear, that's fine.
But the solutions to this claim that ii IS linear.
I think that it is not because alpha and beta and raised to different powers.
Can anybody give an opinion on this?
Thanks!


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hlsmith

Less is more. Stay pure. Stay poor.
#2
Depends on what they want: linear in terms or linear in shape. I would just simulate them and see what they look like.
 

katxt

Active Member
#3
ii can be written Y = A +BX where B is a constant = 1/beta and X is 1/x.
So I would call it a linear model (more or less by definition.)