f(x) = (x^2 - 9)/(2 - x)
Definitionsbereich
2 - x = 0 --> x = 2 --> D = R \ {2}
2^2 - 9 ≠ 0 --> Polstelle
Nullstellen f(x) = 0
x^2 - 9 = 0 --> x = ±3
Asymptote
x = 2 --> Vertikale Asymptote
(x^2 - 9)/(2 - x) = -x - 2 + 5/(x - 2) --> y = -x - 2 --> Schräge Asymptote
Symmetrie
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