9: Conditions
    • −1 ≤ x/(x + 2) ≤ 1,
    • x + 2 ≠ 0
give the domain

D( f ) = (−1,∞).

Now it is time to find limits at −1 from the left and at ∞.

Hint on limit at −1 from the left
Hint on limit at ∞
Answer