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2002 paper 1 question 11 stuck

EUAN.F

Posted 02 May 2006 - 07:15 PM

hi can anyone help me with 2002 paper 1 question 11 as i have no idea how to do it
thanks euan

The Wedge Effect

Posted 02 May 2006 - 07:20 PM

Past Paper solutions index

You should check this before you post, as mostly the question has already been attempted before on the forum. It saves time. tongue.gif

Edit: Never mind, the solution's gone for some reasons. I'll give you some tips on the question if I can find the paper.

2nd Edit: Ugh, I can't remember how to do this, it's been a year since I've attempted this kind of question, I'll wait for someone else to help. tongue.gif

Nathan

Posted 02 May 2006 - 07:38 PM

m= -2 (using y2-y1..etc)
c= 1 (from graph)

hence:
log5y = -2log5x + 1
log5y = log5x-2 + log55
log5y = log55x-2

therefore:

y=5x^-2

i havent checked that against the answers but will do in the next 20 mins or so wink.gif

edit: that's right, but you have to state

k=5, n=-2

Edited by nathanm, 02 May 2006 - 07:50 PM.


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