Wednesday
March 4, 2015

Homework Help: chem help

Posted by ben on Saturday, October 23, 2010 at 11:05pm.

im doing a graph for chem lab with excel.

my classmate created a graph with these coordinates:

X:
3.50 X10^-3
3.14X10^-3
3.28X10^-3



Y:
-11.7
-8.96
-9.75

They got R2=0.998 but i got y = -3074.9x
Rē = 0.6291

why is it wrong. im desperate please help!
screen shot of my graph:

img530.imageshack.us/img530/7507/grph.jpg

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