Question

What are the vertical and horizontal asymptote of f(x)=2x/x-1

Answer 1

f(x)=2x/(x-1)

Denominator cannot be equal 0.
x-1=0
x=1  is vertical asymptote.

To find horizontal asymptote
we need divide the coefficients before x
y=2x/x=2,because when x becomes really big (x---->∞) , value of 1 will not influence the result .
 y=2 is horizontal asymptote