Answer:
y = 0
Explanation:
Given a rational function
f(x) =
![(g(x))/(h(x))](https://img.qammunity.org/2021/formulas/mathematics/middle-school/t33cj7fa9wzws7801sqzjq5sjne99bc7az.png)
If the degree of g(x) < degree of h(x), then
y → 0 as x → ± ∞
Thus y= 0 ( the x- axis ) is the horizontal asymptote
For the given rational function
The numerator is of degree 2 while the denominator is of degree 3
Thus
y = 0 is the horizontal asymptote of r(x)