The College Level Examination Program (CLEP) enables students to demonstrate college-level achievement and earn college credit in various subject areas based on knowledge acquired through self-study, high school and adult courses, or through professional means. The CLEP Precalculus Passbook® prepares you by sharpening knowledge of the skills and concepts necessary to succeed on the upcoming exam and the college courses that follow. It provides a series of informational texts as well as hundreds of questions and answers in the areas that will likely be covered on your upcoming exam, including but not limited to: algebraic expressions; functions; analytic geometry; trigonometry; and more.