which function has no horizontal asymptote? A) f(x)=2x-1/3x^2, B) f(x)=x-1/3x,C) f(x)=2x^2/3x-1D)f(x)=3x^2/x^2-1

A rational function has no horizontal asymptote when the degree of the numerator is greater than the denominator.

In other words, where the numerator has a higher exponent than the denominator.

Answer:
C)  exponent on top is 2, exponent on bottom is 1