The problem goes as such:
Evaluate y' at the point (-2,1)
What I did was (I use 'D' since I'm not sure on the proper notation at the moment, but I want to say it's d / dx)
Skeeter, I think I got it now! (for this problem type)
I was looking at what was going on in this post.
http://www.mathhelpforum.com/math-he...161-post5.html
So what I did was this.
Divide everything by 2:
(I did this step because I thought it would be easier to get my end result )
Differentiate:
(To respect of 'x' of course)
Becoming:
Next:
Final:
Just tell me, did I do anything illegal.