Limits:
To + infinite and - infinite limit you can evaluate the limit as follow: As you can see the limit is is the horizontal asymptote.
For the limits above you use the vertical asymptote (x=-2), the function tends to -infinite to the right of the asymptote and tends to + infinite to the left of the symptote
Graph: Function in red
Vertical asymptote in blue
Horizontal asymptote in green
x- Intercept (0.5,0)
y-intercept (0,0.5)