f(x)= /x+2/ over x+2? What are the removable discountinuities?

Question

i know it does not exist. But why is the non removable at -2?

Answer 1

Just plot a few points carefully, your graph should look something like this:

http://s236.photobucket.com/albums/ff177/jsardi56/?action=view¤t=nonremovable10-5-07.jpg

You have that big jump from (-2, -1) to (-2,1). That's non removable.

Answer 2

Think of it as reversable!