Question

question 4 points 1

find (3q) if (q = \

$$\begin{bmatrix} 1 & 5 & 9 \\\\ 7 & 5 & 3 \\end{bmatrix}$$

).

\\(\bigcirc \

$$\begin{bmatrix} -3 & 15 & -27 \\\\ 21 & 15 & 9 \\end{bmatrix}$$

\\)

\\(\bigcirc \

$$\begin{bmatrix} 3 & 15 & 27 \\\\ 21 & 15 & 9 \\end{bmatrix}$$

\\)

Explanation:

Identify the given matrix and scalar

Using the Scalar Multiplication knowledge point

$$ Q =
LATEXBLOCK0
, \quad k = 3 $$

Multiply each element by the scalar

Using the Scalar Multiplication knowledge point

$$ 3Q =
LATEXBLOCK1
=
LATEXBLOCK2
$$

Answer:

• (A) \(

$$\begin{bmatrix} -3 & 15 & -27 \\ 21 & 15 & 9 \end{bmatrix}$$

\)

• **(B) \(

$$\begin{bmatrix} 3 & 15 & 27 \\ 21 & 15 & 9 \end{bmatrix}$$

\) (Correct answer)**