Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 10 - 10.1 - Matrices and Systems of Equations - 10.1 Exercises - Page 711: 81

Answer

x = 1 y = 0 z = 4 w = -2

Work Step by Step

The reduced row-echelon form of the matrix is: $\begin{bmatrix} 1 & 0 & 0 & 0 & |1\\ 0 & 1 & 0 & 0 & |0\\ 0 & 0 & 1 & 0 & |4\\ 0 & 0 & 0 & 1 & |-2\\ \end{bmatrix}$ From reduced row-echelon form the solution is simple: x = 1 y = 0 z = 4 w = -2
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.