Can anyone please tell about slope function

[sudheer babu]

Hi all
Can anyone please tell what is the exact function and use of SLOPE , which
calculates by y=mx+c formula. I found that slope defines the measurement of
line, but my doubt is that I have done protein estimation by bradford
method. Then I plotted a straight line graph based on results. Here what is
the use of calculating slope???  May be I am asking trivial question, I am
kindergarten to mathematics, can anyone please explain me.

Thank you in advance

Cheers
-- 
Sudheer Babu.S
ITC student
Institute of Biochemistry
Biological Research Center
Szeged,Hungary.