The graph below represents the rational function $\displaystyle f(x) = \frac{-x^{2}}{x^2+4x-5}.$

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1. Find the vertical asymptote(s).
Answer (separate by commas): $x =$

2. Find the horizontal asymptote(s).
Answer (separate by commas): $y =$

3. Find the equation(s) of the oblique asymptote(s) in slope-intercept form $y=mx+b$.
Equation(s) (separate by commas, or enter NONE if there are none):

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Note: You can click on the graph to enlarge the image.