ECE Ph.D. Qualifying Exam: Automatic Control (AC)- Question 3, August 2011
$ \color{blue}\text{3. } \left( \text{20 pts} \right) \text{ Solve the following linear program, } $
$ \text{maximize } -x_{1}-3x_{2}+4x_{3} $$ \text{maximize } -x_{1}-3x_{2}+4x_{3} $
