Additional review:
https://www.youtube.com/watch?v=sFxA8eIS6tA&index=25&list=PLE7DDD91010BC51F8
Exam:
https://ocw.mit.edu/courses/mathematics/18-06-linear-algebra-spring-2010/exams/MIT18_06S10_exam2_s10.pdf
Solutions:
https://ocw.mit.edu/courses/mathematics/18-06-linear-algebra-spring-2010/exams/MIT18_06S10_exam2_s10_soln.pdf