Linear Algebra: A Modern Introduction

Published by Cengage Learning
ISBN 10: 1285463242
ISBN 13: 978-1-28546-324-7

Chapter 2 - Systems of Linear Equations - 2.1 Introduction to Systems of Linear Equations - Exercises 2.1 - Page 63: 10

Answer

Not in row echelon form

Work Step by Step

The matrix is not in row echelon form because the leading coefficient of the second row is directly below the leading coefficient of the first row. If the matrix were in row echelon form, this coefficient would be to the right of the coefficient above.
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