Encode and Decode Messages
Encode or Decode the Given Message $\mathrm { A } = \left[ \begin{array} { r r } - 1 & - 3 \\ 2 & 5 \end{array} \right]$

Multiple Choice

Encode and Decode Messages
Encode or decode the given message, as requested, numbering the letters of the alphabet 1 through 26 in their usual
order.
-Use the coding matrix $\mathrm { A } = \left[ \begin{array} { r r } - 1 & - 3 \\ 2 & 5 \end{array} \right]$ to encode the message CARE.

A) $\left[ \begin{array} { r r } - 6 & - 33 \\ 11 & 61 \end{array} \right]$
B) $\left[ \begin{array} { r r } - 57 & - 16 \\ 96 & 27 \end{array} \right]$
C) $\left[ \begin{array} { r r } 18 & 105 \\ - 7 & - 4 \end{array} \right]$
D) $\left[ \begin{array} { r r } - 1 & - 8 \\ - 4 & - 29 \end{array} \right]$