Spring 2003 - Buss' Class - Quiz 1

Spring 2003 - Buss' Class - Quiz 1 - Name: Student ID:...

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Name: Thursday section time: Student ID: Math 20F - Linear Algebra - Spring 2003 Quiz #1 — April 10 — ANSWERS (Do not the discuss quiz with students who haven’t taken it yet – until 8:00pm.) You must show your work in order to get credit for a problem. Label your answers clearly. Consider the following system of linear equations: x 1 +2 x 2 +3 x 3 +4 x 4 =3 2 x 1 x 2 +8 x 3 +6 x 4 =8 x 3 - x 4 =1 a. Express this system of linear equations as an augmented matrix. b. Put it into reduced row echelon form (RREF). c. Which variables are free variables? Which variables are lead variables?
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This note was uploaded on 04/23/2008 for the course MATH 20F taught by Professor Buss during the Spring '03 term at UCSD.

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