How to define a rational expression.
How to rationalize denominators.
How to use the rational roots theorem.
How to rationalize the denominator with a higher root.
How to rationalize a denominator by multiplying by the conjugate.
How to simplify an expression with rational exponents.
How to simplify rational expressions.
How to find excluded values of a rational function.
How to multiply and divide rational expressions.
How to add and subtract rational expressions.
How to define rational functions, and how to identify their domain and zeros.
How to solve a simple rational equation for a parameter.
How to use rational exponents to simplify higher power and indexed radicals.
How to find the oblique asymptote of a rational function, if it has one.
How to understand the correlation between radicals and fractional exponents.
How to recognize when a rational function has a horizontal asymptote, and how to find its equation.
How to recognize when y = 0 is the horizontal asymptote of a rational function.
How to evaluate the limit of k/x^n as x goes to infinity (or negative infinity).
How to add or subtract rational expressions.