Re: Modeling data...Linear or direct proportional

[Norman Lohstreter <petel@TENET.EDU>]

> I usually reserve the word "proportional" to y=m*x and use the word
> "linear" when y=m*x+b. To make it more acceptable to all I also say
> that "if doubling and tripling of x also doubles and triples y, then the
> relation is proportional.

Ludwik is correct.  This is also the convention used in Woukshop Physics and
Real Time Physics.  I have not checked with the math department on this, but
I have not had any comments from students that they do it any differently in
math class either.

Pete Lohstreter