| |
| |
1. |
Find the magnitude of  to the nearest tenth. |
| |
|
A. |
5.4 units |
B. |
21.0 units |
| |
|
C. |
4.6 units |
D. |
29.0 units |
| |
|
Hint |
|
| |
2. |
Find the direction of  to the nearest degree for A(2, -1) and B(-3, 3). |
| |
|
A. |
219° |
B. |
321° |
| |
|
C. |
141° |
D. |
39° |
| |
|
Hint |
|
| |
3. |
Given A(-5,0) and B(2,4) find the vector parallel to AB. |
| |
|
A. |
CD, C (-2,2)D (5,3) |
| |
|
B. |
WX, W (-1,-3)X (6,1) |
| |
|
C. |
UV, U (-4,-5)V (-3,5) |
| |
|
D. |
RS, R (-1,1) S (6,-3) |
| |
|
Hint |
|
| |
4. |
If  = (0,4) and  = (-1,6), and  = 2 -3, find . |
| |
|
A. |
(-3,26) |
B. |
(3,-10) |
| |
|
C. |
(0,10) |
D. |
(3,10) |
| |
|
Hint |
|
| |
5. |
What is the component form of  for A(23, 21) and B(-18, 1)? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
|
|