Hello everybody, how are you doing?

I'm having a hard time trying to figure out how to find vertical and horizontal asymtopes which if I'm not wrong are essentials to be able to graph a function correctly.

So, could you please teach me how to find the vertical and horizontal asymtopes as in this example

f(x) = 1/x+2 -1 , yeah I know is hard to read, I didn't know how to type it correctly, it is read: 1 over x -2 minus 1, (minus 1 is substrating both the denominador and the numerator).

if you didn't understand how I wrote that exercise, you could also see it here

http://www.accd.edu/sac/math/faculty.../PdfT1Rev2.pdf on question 4

thank you so much.