Vector $\vec v=(x,y)$ and $||\vec v||= 2$.
**Fill in the blanks to complete the following sentences.**
Vector $\vec w=(7x,7y)$, so $||\vec w||=$ [[☃ numeric-input 1]].
Vector $\vec z=(-7x,-7y)$, so $||\vec z||=$ [[☃ numeric-input 2]].
**Match each vector defined above to a vector that could be its equivalent.**
[[☃ matcher 1]]