Chapter 11.FOM, Problem 3P

Let $T=\left[\begin{array}{cc}1& 1.5\\ 0& 1\end{array}\right]$

(a) What effect does $T$ have on the gray square in the Table 1.

(b) Find $T^{-1}$.

(c) What effect does $T^{-1}$ have on the gray square?

(d) What happens to the square if we first apply $T$, then $T^{-1}$?