Chapter 11 - Polynomial and Rational Functions - 11.4 Rational Functions - Exercises and Problems for Section 11.4 - Exercises and Problems - Page 461: 6

$$ \frac{3x+1}{6}$$

We simplify: $$ \frac{x^3}{2x^2}+\frac{1}{6} \\ \frac{x\cdot \:3}{6}+\frac{1}{6} \\ \frac{3x+1}{6}$$ We see that the numerator and the denominator contain polynomials. Thus, we see that it is a rational function.