If you need to know it, it's in this book. The 2013-2014 edition of Cracking the SAT Math 1 & 2 Subject Tests includes:
4 full-length practice tests with detailed explanations (2 each for Levels 1 and 2) Comprehensive review of all topics on each SAT Math Subject Test Practice problems for every subject type covered on the tests: Algebra I & II, Geometry, Trigonometry, Probability, Matrices, and Pre-Calculus Step-by-step strategies and tips for solving even the toughest problems Thorough integration of TI-80 graphing calculator techniques