How do you find the Vertical, Horizontal, and Oblique Asymptote given f(x)= (1)/(x^2-4)f(x)=1x24?

1 Answer
Jun 4, 2018

Vertical asymptotes are at x = 2 and x = -2x=2andx=2
Horizontal asymptote is y = 0 y=0 , slant asymptote is absent.

Explanation:

f(x) = 1/(x^2-4) or f(x) = 1/((x+2)(x-2))f(x)=1x24orf(x)=1(x+2)(x2)

The vertical asymptotes will occur at those values of xx for which

the denominator is equal to zero. x+2=0 :. x=-2 and

x-2=0 :. x=2 .Thus, the graph will have vertical asymptotes

are at x = 2 and x = -2

The degree of numerator is 0 and of denominator is 2

Since the larger degree occurs in the denominator, the

graph will have a horizontal asymptote as y = 0 (i.e., the x-axis).

If the numerator's degree is greater (by a margin of 1), then

we have a slant asymptote . So here slant asymptote is absent.

graph{1/(x^2-4) [-11.25, 11.25, -5.625, 5.625]} [Ans]