This rational function represents an algebraic expression where both numerator and denominator are polynomials.
f(x) = (x - 3)/(x^2 - 9) cheat sheet for homework
A rational function is any function that can be expressed as a fraction with polynomial functions in both numerator and denominator.
A polynomial function consists of terms made up of constants and variables raised to whole number exponents.
An asymptote is a line that serves as a boundary for which a graph gets arbitrarily close to but never touches.