Answer:
D
Step-by-step explanation:
The horizontal asymptote is found by considering the ratio of the coefficients of the highest degree terms on the numerator and denominator, that is
coefficient of 6x² on the numerator ⇒ 6
coefficient of 9x³ on the denominator ⇒ 9
The horizontal asymptote is
y = [tex]\frac{6}{9}[/tex] ⇒ y = [tex]\frac{2}{3}[/tex] → D
