The domain is all x except for x=-⅕, when the expression becomes infinitely big in the positive and negative directions depending on which side of this asymptote x is. If x approaches -⅕ from the left it’s -∞ and from the right it’s ∞. There is another asymptote as the magnitude of x increases, so that the expression approaches ⅗ (0.6). This affects the range which can take any value except ⅗.