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1. |
For which value is a dilation with that scale factor a congruence transformation? |
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A. |
1 |
B. |
0 |
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C. |
2 |
D. |
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Hint |
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2. |
If AB = 6, find the measure of the dilation image of  for a dilation with scale factor -3. |
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A. |
9 |
B. |
3 |
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C. |
-6 |
D. |
18 |
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Hint |
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3. |
A square is reduced by a scale factor of . The area of the image is how many times the area of the preimage? |
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A. |
 |
B. |
4 |
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C. |
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D. |
2 |
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Hint |
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4. |
Which statement is true about dilations? |
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A. |
Dilations are the combination of two reflections. |
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B. |
Dilations are isometries. |
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C. |
Dilations form similar images. |
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D. |
Dilations form congruent images. |
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Hint |
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5. |
A triangle has vertices M(-3, 6), N(-3, 3), and O(0, 3). Find the coordinates of the dilated triangle M´N´O´ if the scale factor is  . |
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A. |
M´(-1, 2), N´(-1, 1), O´(0, 1) |
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B. |
M´(-9, 18), N´(-9, 9), O´(0, 9) |
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C. |
M´(1, -2), N´(1, -1), O´(0, -1) |
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D. |
M´(-1, 6), N´(-1, 3), O´(0, 3) |
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Hint |
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