Vector $\vec v=(x,y)$ and $||\vec v||= 8$. **Fill in the blanks to complete the following sentences.** Vector $\vec w=\left(-\dfrac{1}{2}x,-\dfrac{1}{2}y\right)$, so $||\vec w||=$ [[☃ numeric-input 1]]. Vector $\vec z=\left(\dfrac{1}{4}x,\dfrac{1}{4}y\right)$, so $||\vec z||=$ [[☃ numeric-input 2]]. **Match each vector defined above to a vector that could be its equivalent.** [[☃ matcher 1]]