Which functions have graphs with a horizontal asymptote? Select all that apply.
Select all that apply:
a.)f(x) 2x/x-5
b.) f(x) x^2-1/x+3
c.) f(x) x^3+5/x^5+2
d.) f(x) 9x^3/x-6
e.) f(x)x-1/x^2