How to write equations in function notation.
How to find excluded values of a rational function.
How to determine whether a relation is a function.
How to understand the idea of slope.
What is absolute value?
How to write a function to describe a table of values.
How to simplify rational expressions.
How to label the roots of a quadratic polynomial, solutions to a quadratic equation, and x-intercepts or roots of a quadratic function.
How to graph radical functions without making a table of values.