See below for answer and explanations (as well as an attached graph)
Step-by-step explanation:
Pay attention to the behavior of the asymptotes. If the asymptotes are approaching a certain x-value or y-value, then that value is undefined for the function.
Take for example :
As x approaches ∞ and -∞, then y approaches 0, which is our horizontal asymptote
As y approaches ∞ and -∞, then x approaches 0, which is our vertical asymptote