Pre-Calculus covers the study of algebra, geometry, and mathematical functions as a preparatory course for calculus. Tutors in this subject area may help students develop a wide range of skills which include but are not limited to: basic algebraic skills, basic concepts of limits, trigonometric functions, systems of linear and nonlinear equations and inequalities, basics of functions and their graphs, function operations, and function transformations, polynomial, rational, radical, exponential and logarithmic functions, and understanding the use of the Binomial theorem.