*urgent!

Hi I'm not sure about this question, will beta one change when the x variable changes?

(the x variable wwas originally the years over time, and now the years are simply labelled as consecutive numbers, ie not 2004, 2005 etc. but 100, 101 etc.)

i was just wondering how i would provide a proof for this?? and i'm not sure if beta one will change.

thanks for responses!!