Question

question 23 points 2

find \\(5a\\) if \\(a = \

$$\begin{bmatrix} -10 & 40 \\\\ 30 & -20 \\end{bmatrix}$$

\\)

\\(\bigcirc \

$$\begin{bmatrix} -5 & 35 \\\\ 25 & -15 \\end{bmatrix}$$

\\)
\\(\bigcirc \

$$\begin{bmatrix} -50 & 200 \\\\ 150 & -100 \\end{bmatrix}$$

\\)

Explanation:

Identify the given matrix and scalar

Using the Scalar Multiplication knowledge point

$$ A =
LATEXBLOCK0
, \quad k = 5 $$

Multiply each element by the scalar

Using the Scalar Multiplication knowledge point

$$ 5A =
LATEXBLOCK1
=
LATEXBLOCK2
$$

Answer:

• \(

$$\begin{bmatrix} -5 & 35 \\ 25 & -15 \end{bmatrix}$$

\)

• **\(

$$\begin{bmatrix} -50 & 200 \\ 150 & -100 \end{bmatrix}$$

\) (Correct answer)**