given math problem solve for the following?

Question

given f(x) = (4-x)(x+5)/(-4x-4)(5x-4)
find vertical asymptote and the horizontal asymptotes
who ever anser this correctly will get 10 points

Answer 1

Vert Asymptote:
x= -1 and x = 4/5 (just set each factor in the denominator to equal zero, since neither factor cancels)

Horiz. Asym: y = 1/20
( top = -x^2 -x + 20
bottom = -20x^2 -4x + 16
the limit as x approaches infinity is -1/-20 = 1/20