11.2+due+4-11

f(x) = (x^2-1)/(x+1)
 * 4

(a) (1^2-1)/(1+1) = 1/2 (b) (2^2-1)/(2+1) = 3/3 = 1 (c) (-1^2-1)/(-1+1) = 0/0 = DNE

(a) doesn't fit on the graph so (a) is the answer

lim x->5 (5-x)/(x^2-25) -> (5-x)/(-25+x^2) -> (5-x)/(5-x)(-5-x) -> 1/(-5-x) -> 1/(-5-5) = -1/10
 * 6

dont by matt milan =)
 * 4,6 done by Sung Yoo
 * 8,10


 * 1) 8 and 10 look correct. Checked by Miles Hennington

12, 14. Done by Rachel West.

Number 12 looks good. But for number 14, I got positive 1/8 instead of negative. I think you got a negative because you didn't use parentheses for (18 - x). the double negative would cancel out the negative, making a positive. At least that's what i got?? checked by mady smith

I got the same thing! Checked by: Alyssa Johnson
 * 1) 47 done by Amy Finkelstein

49) there is no limit the two sides of the graph do not correspond done by Peter Radecki i got the same thing! checked by:Valeria Chelala


 * 1) 48 Fred Jordan[[image:IMG_0001[1].JPG width="400" height="300" align="left"]], I almost forgot, my answer is the limit is 3, its not very clear

that's what I got checked by: Michael Herzberg

Great job!! I agree with Kamryn! Checked by Kelsey Harmon
 * 1) 50 Done by Kamryn Richard

60. f(x+h)=5-6(x+h) =5-6x-6h 5-6x-6h-f(x) =5-6x-6h-(5-6x) =5-6x-6h-5+6x =-6h/h =-6 This one wasn't posted, and I'm not sure that the last step is right because I didn't end up plugging anything in for h... Checked by Ellen Barth

Done By: Michael MacCrory Looks good man i got the same thing. Checked by Cameron Johnson
 * 62

I was suppose to check but nobody did it so I put mine up. I didn't know what to do after that and im pretty sure I did it wrong Done and Checked by: Andrew Kim