Respuesta :

bcalle
The second matrix system is the correct answer

Answer:

B) [tex]\left[\begin{array}{ccc}2&-7\\1&3&\end{array}\right][/tex] X = [tex]\left[\begin{array}{ccc}-1\\-5\end{array}\right][/tex]

Step-by-step explanation:

Given:

2x - 7y = -1

x + 3y = -5

Here we have to follow three steps in order to write the system of linear equations in matrix form.

Step 1: Write the coefficients of the system of equations in one matrix form.

The coefficients are

[tex]\left[\begin{array}{ccc}2&-7\\1&3&\end{array}\right][/tex]

Step 2: Multiply this matrix with the variables x and y

[tex]\left[\begin{array}{ccc}2&-7\\1&3&\end{array}\right][/tex] X

Here "X" represents the variable x and y.

Step 3: Write the numbers which are on the right side of the equations on the right of equal sign

[tex]\left[\begin{array}{ccc}2&-7\\1&3&\end{array}\right][/tex] X = [tex]\left[\begin{array}{ccc}-1\\-5\end{array}\right][/tex]

The answer is B) [tex]\left[\begin{array}{ccc}2&-7\\1&3&\end{array}\right][/tex] X = [tex]\left[\begin{array}{ccc}-1\\-5\end{array}\right][/tex]