Question

Given ( 12 -13 17 -22) (x y)= (7 -51), what is |A y|?

Answer 1

B.) | 12, 7, 17, -22 |

Answer 2

The complete question is attached below:

What is matrix ?

A set of numbers arranged in rows and columns so as to form a rectangular array.

Given:

$\left[\begin{array}{ccc}12&-13\\17&-22\end{array}\right]* \left[\begin{array}{ccc}x\\y\end{array}\right] = \left[\begin{array}{ccc}7\\-51\end{array}\right]$

  [ 12x - 13 y

   17x - 22y ]     =  $\left[\begin{array}{ccc}7\\-51\end{array}\right]$

As we need to find Ay for that the matrix on RHS of equal sign $\left[\begin{array}{ccc}7\\-51\end{array}\right]$ is to be putted in the matrix  $\left[\begin{array}{ccc}12&-13\\17&-22\end{array}\right]$  

Hence, Ay = $\left[\begin{array}{ccc}12&7\\17 & -51\end{array}\right]$

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