Perform Operations with Vectors in Terms of i and j
-$\mathbf { v } = 9 \mathbf { i } + 3 \mathbf { j }$; Find $2 \mathbf { v }$.
A) $18 \mathbf { i } + 6 \mathbf { j }$
B) $18 \mathbf { i } + 3 \mathbf { j }$
C) $11 \mathbf { i } + 5 \mathbf { j }$
D) $11 \mathbf { i } + 3 \mathbf { j }$

Question

Quizplus · Accepted Answer

Multiplying the vector $\mathbf { v } = 9 \mathbf { i } + 3 \mathbf { j }$ by 2 results in $2 \times 9 \mathbf { i } + 2 \times 3 \mathbf { j } = 18 \mathbf { i } + 6 \mathbf { j }$.

Perform Operations with Vectors in Terms of I and J v=9i+3j\mathbf { v } = 9 \mathbf { i } + 3 \mathbf { j }v=9i+3j

Perform Operations with Vectors in Terms of I and J $\mathbf { v } = 9 \mathbf { i } + 3 \mathbf { j }$