Answer
See below
Work Step by Step
Given $A=\begin{bmatrix}
1 & 2\\
0 & 1
\end{bmatrix}$
We can see that $A=A_{21}(2)$ corresponds to a shear parallel to the y-axis.
Differential Equations and Linear Algebra (4th Edition)
by Goode, Stephen W.; Annin, Scott A.
Published by
Pearson
ISBN 10:
0-32196-467-5
ISBN 13:
978-0-32196-467-0
Chapter 6 - Linear Transformations - 6.2 Transformations of R2 - Problems - Page 397: 6
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