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<div class="moz-text-html" lang="x-unicode"> <font size="3"
face="Times New Roman">A couple of people have asked whether the
lines on the graphs should be <br>
forced through the origins. </font><font size="3"
face="Times
 New Roman"><font size="3" face="Times New
Roman"> I think I covered this in a previous e-mail so<br>
hopefully this is just a reminder.</font><br>
<br>
You should understand they should go through the origin, since
if the mass<br>
is zero the volume should be zero and vice versa. However, you
shouldn't<br>
force them through the origin (this can be done in Excel and
you will do it<br>
for one of the graphs later in the semester). The fact the
y-intercept doesn't<br>
go through the origin tells you something (what type of error
you may have). <br>
<br>
Dr. Zellmer </font> </div>
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