The graph of (x^2-1)y=x^2-4has:A.one horizontal and one vertical asymptotesB.two vertical but no horizontal asymptotesC.one horizontal and two vertical asympototesD.two horizontal and two vertical asymptotesE.neither a horizontal nor a vertical asymp

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Thegraphof(x^2-1)y=x^2-4has:A.onehorizontalandoneverticalasymptotesB.twoverticalbutnohorizontalasymp

The graph of (x^2-1)y=x^2-4has:A.one horizontal and one vertical asymptotesB.two vertical but no horizontal asymptotesC.one horizontal and two vertical asympototesD.two horizontal and two vertical asymptotesE.neither a horizontal nor a vertical asymp
The graph of (x^2-1)y=x^2-4has:
A.one horizontal and one vertical asymptotes
B.two vertical but no horizontal asymptotes
C.one horizontal and two vertical asympototes
D.two horizontal and two vertical asymptotes
E.neither a horizontal nor a vertical asymptote

The graph of (x^2-1)y=x^2-4has:A.one horizontal and one vertical asymptotesB.two vertical but no horizontal asymptotesC.one horizontal and two vertical asympototesD.two horizontal and two vertical asymptotesE.neither a horizontal nor a vertical asymp

答案为E
正确解法:用x表示y,如果分子中x的指数大于分母中x的指数,则无asymptotes
同理,用y表示x,如果分子中y的指数大于分母中y的指数,则无asymptotes

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