| |
| |
1. |
A(n) _____ is a transformation that occurs when a figure is moved from one location to another. |
| |
|
A. |
dilation |
B. |
addition |
| |
|
C. |
enlargement |
D. |
translation |
| |
|
Hint |
|
| |
2. |
Triangle PQR with vertices P(-8, 9), Q(-3, -1), and R(2, 5) is translated so that P' is at (-12, 0). Find the translation matrix. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
3. |
What translation matrix should be used to translate a figure with five vertices up 3 units and right 2 units? |
| |
|
A. |
 |
| |
|
B. |
 |
| |
|
C. |
 |
| |
|
D. |
 |
| |
|
Hint |
|
| |
4. |
What are the coordinates of the vertices of the image of rectangle HJKL with H(4, 1), J(-3, -2), K(2, -6), and L(-4, 5) after a reflection across the x-axis? |
| |
|
A. |
H'(-4, –1), J'(-3, -2), K'(-2, -6), L'(-4, -5) |
| |
|
B. |
H'(-4, –1), J'(3, 2), K'(-2, 6), L'(4, -5) |
| |
|
C. |
H'(-4, 1), J'(3, -2), K'(-2, -6), L>'(4, 5) |
| |
|
D. |
H'(4, –1), J'(-3, 2), K'(2, 6), L'(-4, -5) |
| |
|
Hint |
|
| |
5. |
Which of the following is the correct rotation matrix for a rotation of 180°counterclockwise about the origin? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
|
|