Answer:
C
Explanation:
When both the numerator and denominator of a rational function have the same degree, you divide the highest powered term's coefficients. That is the horizontal asymptote.
Since this function has third degree in both the numerator and denominator, we divide the respective coefficients to find the horizontal asymptote.
So, y = 9/7
Correct answer is C
Note: horizontal asymptote is always in the form y = a (where a is the constant)