How do you find the vertical, horizontal and slant asymptotes of: #y = ( 2x-4)/(x^2+2x+1)#?

1 Answer
Sep 17, 2017

Answer:

Vertical asymptote is at #x=-1# , horizontal asymptote is at x-axis #(y=0)# and there is no slant asymptote.

Explanation:

#y= (2x-4)/(x^2+2x+1) or (2(x-2))/(x+1)^2 #

Vertical asymptote : We will have vertical asymptotes at those

values of #x# for which the denominator is equal to zero.

# x+1=0 :. x=-1# . So vertical asymptote is at #x=-1#

Horizontal asymptote: If m > n (that is, the degree of the

denominator is larger than the degree of the numerator), then the

graph of y = f(x) will have a horizontal asymptote at #y = 0#

(i.e., the x-axis). So horizontal asymptote is at x-axis #(y=0)#

Slant asymptote: if the numerator's degree is greater (by a margin

of 1), then we have a slant asymptote which is found by doing long

division. So there is no slant asymptote.

graph{(2(x-2))/(x+1)^2 [-40, 40, -20, 20]} [Ans]