| |
| |
1. |
If AB = 6, find the measure of the dilation image of for a dilation with scale factor -3. |
| |
|
A. |
9 |
B. |
18 |
| |
|
C. |
3 |
D. |
-6 |
| |
|
Hint |
|
| |
2. |
Refer to the figure below. A dilation with center C produced the circle in red. What is the scale factor of the dilation? |
| |
|
 |
| |
|
A. |
1 |
B. |
 |
| |
|
C. |
2 |
D. |
3 |
| |
|
Hint |
|
| |
3. |
A square is reduced by a scale factor of . The area of the image is how many times the area of the preimage? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
2 |
D. |
4 |
| |
|
Hint |
|
| |
4. |
Which statement is true about dilations? |
| |
|
A. |
Dilations are isometries. |
| |
|
B. |
Dilations are the combination of two reflections. |
| |
|
C. |
Dilations form similar images. |
| |
|
D. |
Dilations form congruent images. |
| |
|
Hint |
|
| |
5. |
Pentagon EFGHI has vertices E(-9, 0), F(-3, 6), G(6, 6), H(6, -6), and I(-3, -6). Graph pentagon EFGHI and its dilated image E´F´G´H´I´ if the scale factor is . |
| |
|
A. |
 |
| |
|
B. |
 |
| |
|
C. |
 |
| |
|
D. |
 |
| |
|
Hint |
|
|
|