```Date: May 25, 1995 8:02 PM
Author: ToniU@aol.com
Subject: Re: Fwd- Puzzling Questions

ubj:   Re: Fwd- Puzzling QuestionsDate:   Thu, May 25, 1995 9:25 AM ESTFrom:  Patsy_Fagan@qmbridge.drake.eduTo: ToniU@aol.com (ToniU)                      RE>Fwd: Puzzling Questions                   5/25/95Hi,   I have an explanation for 0!=1 that makes much sense to me and to mystudents.Based on the permutation problem "How many different wall arrangements canyou make by placing  3 pictures in a row?" , the answer is 3!.  To followthat thinking is the question "How many different wall arrangements can youmake by placing 1 picture?", the answer is 1!.  The number of differentwall arrangements you can make by hanging no pictures then is 0! or 1 -hang no pictures.  I hope this is helpful.As to why m is used for slope, one explanation is that Rene Descartes wasFrench and the word for mountain is montagne, hence he used the firstletter of the word.  Why the letter 'b' is used for y-intercept is still amystery to me.Have a nice day!6:07 EDTHi, everyone--I have two puzzling questions that I desire to know:1)  Why is 0!= 1?  2)  Why is slope designated by m and the y-intercept by b in the y=mx+b?Can anyone answer these mysteries for me?I thank you in advance for your knowledge and wisdom.Beverly Anderson <baba@tenet.edu>
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