Answers to the June 2010 Algebra 2 and Trigonometry Regents exams are available from the New York State Department of Education's Office of State Assessment. For further study, answer keys for a variety of previous math exams are also available.
As of August 2014, a total of ten previous Algebra 2 and Trigonometry exams are available for review. Resources available for each previous exam administration include the actual examination questions without answers and the correct answers in separate files. Diligently working through previous exams is a good way to review the concepts covered in class.
The sample response sets represent another useful study resource. These offer insight into what differentiates great answers that receive full credit from weaker answers that receive only partial credit or no credit. Avoid making the types of errors described in the lower scoring responses to earn the highest possible grade.