# How do you write vector CD as the sum of unit vectors for points C (7,4) & D (-8, -1)?

Hint is given below

#### Explanation:

HINT:

$\setminus \vec{C D}$ joining the points $C \left(7 , 4\right)$ & $D \left(- 8 , - 1\right)$ is given as follows

$\setminus \vec{C D}$

$= \left(- 8 - 7\right) \setminus \hat{i} + \left(- 1 - 4\right) \setminus \hat{j}$

$= - 15 \setminus \hat{i} - 5 \setminus \hat{j}$