4: Limit at −∞:
No horizontal asymptote at −∞, but a chance for oblique.
No oblique there.
Limit at x = −1 from the left:
Vertical asymptote at x = −1.
Limit at x = 0 from the right:
No vertical asymptote at x = 0.
Limit at ∞:
No horizontal asymptote at ∞, but a chance for oblique.
Answer
