Which of the following vectors are parallel to $\vec{v}=5 \vec{i}-2 \vec{j}+2 \vec{k}$ ? Mark all that apply.
A) $\vec{r}=-10 \vec{i}+4 \vec{j}-4 \vec{k}$
B) $\vec{s}=5 \vec{i}+2 \vec{j}-2 \vec{k}$
C) $\vec{t}=6 \vec{i}-3 \vec{j}+3 \vec{k}$
D) $\vec{u}=15 \vec{i}-6 \vec{j}+6 \vec{k}$
E) $\vec{w}=-2 \vec{i}+2 \vec{j}+5 \vec{k}$

Question

Quizplus · Accepted Answer

Vectors are parallel if one is a scalar multiple of the other. $\vec{r}$ is $-2$ times $\vec{v}$, and $\vec{u}$ is $3$ times $\vec{v}$.

Which of the Following Vectors Are Parallel To v⃗=5i⃗−2j⃗+2k⃗\vec{v}=5 \vec{i}-2 \vec{j}+2 \vec{k}v=5i−2j​+2k

Which of the Following Vectors Are Parallel To $\vec{v}=5 \vec{i}-2 \vec{j}+2 \vec{k}$