Unformatted text preview: c) Every consistent underdetermined system has inﬁnitely many solutions. d) Every system in triangular form has a unique solution. e) Every system in triangular form has a nontrivial solution. Answers: TFTTF 3) Use the traﬃc ﬂow diagram [given on the real exam] to make a 2x2 linear system of equations. Do not solve it. Answer: After simpliﬁcation, x 1x 2 = 50 and x 1 + x 2 = 850. I gave credit for answers in matrix form, but deducted a few points if the equations were not written in standard form. 1...
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 Spring '09
 JULIANEDWARDS
 Gaussian Elimination, Row echelon form, triangular form, Prof. S. Hudson

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