Suppose T : R2 R2 is a linear transformation. In each case, use the information provided

Chapter 2, Problem 3

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QUESTION:

Suppose \(T: \mathbb{R}^2 \rightarrow \mathbb{R}^2\) is a linear transformation. In each case, use the information provided to find the standard matrix A for T.

*a. \(T\left(\left[\begin{array}{l}1 \\ 0\end{array}\right]\right)=\left[\begin{array}{r}2 \\ -3\end{array}\right]\) and \(T\left(\left[\begin{array}{l}2 \\ 1\end{array}\right]\right)=\left[\begin{array}{r}-1 \\ 1\end{array}\right]\)

b. \(T\left(\left[\begin{array}{l}2 \\ 1\end{array}\right]\right)=\left[\begin{array}{l}5 \\ 3\end{array}\right]\) and \(T\left(\left[\begin{array}{l}0 \\ 1\end{array}\right]\right)=\left[\begin{array}{r}1 \\ -3\end{array}\right]\)

c. \(T\left(\left[\begin{array}{l}1 \\ 1\end{array}\right]\right)=\left[\begin{array}{l}3 \\ 3\end{array}\right]\) and \(T\left(\left[\begin{array}{r}1 \\ -1\end{array}\right]\right)=\left[\begin{array}{r}-1 \\ 1\end{array}\right]\)

Questions & Answers

QUESTION:

Suppose \(T: \mathbb{R}^2 \rightarrow \mathbb{R}^2\) is a linear transformation. In each case, use the information provided to find the standard matrix A for T.

*a. \(T\left(\left[\begin{array}{l}1 \\ 0\end{array}\right]\right)=\left[\begin{array}{r}2 \\ -3\end{array}\right]\) and \(T\left(\left[\begin{array}{l}2 \\ 1\end{array}\right]\right)=\left[\begin{array}{r}-1 \\ 1\end{array}\right]\)

b. \(T\left(\left[\begin{array}{l}2 \\ 1\end{array}\right]\right)=\left[\begin{array}{l}5 \\ 3\end{array}\right]\) and \(T\left(\left[\begin{array}{l}0 \\ 1\end{array}\right]\right)=\left[\begin{array}{r}1 \\ -3\end{array}\right]\)

c. \(T\left(\left[\begin{array}{l}1 \\ 1\end{array}\right]\right)=\left[\begin{array}{l}3 \\ 3\end{array}\right]\) and \(T\left(\left[\begin{array}{r}1 \\ -1\end{array}\right]\right)=\left[\begin{array}{r}-1 \\ 1\end{array}\right]\)

ANSWER:

Problem 3

Suppose    is a linear transformation. In each case, use the information provided to find the standard matrix A for T .

a.    and  

b.  and

c.  and

                                              Step-by-step solution

Step 1 of  3

(a)Determine the image of the standard vectors

The matrix $$A$$ then has as columns the image of standard vectors

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