SOLUTION: Find the slope of the line that contains the points 9,8 and -2,1

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Question 448477: Find the slope of the line that contains the points 9,8 and -2,1
Found 2 solutions by mananth, ikleyn:
Answer by mananth(16949) About Me  (Show Source):
You can put this solution on YOUR website!
x1 y1 x2 y2
9 8 -2 1

slope m =(y2-y1)/(x2-x1)
(1-8)/( -2-9)
(-7/-11 )
m=0.64

Plug value of the slope and point (2, -4) in
Y =mx+b
-4.00=1.27+b
b=-4-1.27
b=-5.27
So the equation will be
Y =0.64 x-5.27
m.ananth@hotmail.ca

Answer by ikleyn(53419) About Me  (Show Source):
You can put this solution on YOUR website!
.
Find the slope of the line that contains the points 9,8 and -2,1
~~~~~~~~~~~~~~~~~~~~~


        The solution in the post by @mananth is INCORRECT.

        Below is my solution in correct form. 


The slope is

    m = %28y2-y1%29%2F%28x2-x1%29 = %281-8%29%2F%28-2-9%29 = %28-7%29%2F%28-11%29 = 7%2F11.


ANSWER.  The slope is 7%2F11.

Solved completely and correctly.

In this kind of problems, @mananth runs his computer code, which produces incorrect solutions every time,
from problem to problem. But for this person, @mananth, it does not matter - he even does not look what
his code produces, what it prints and what he submits to this forum.

I just tired to disprove his posts.