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1. |
Refer to the figure below. A dilation with center C produced the circle in red. What is the scale factor of the dilation? |
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A. |
3 |
B. |
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C. |
2 |
D. |
1 |
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Hint |
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2. |
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. |
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B. |
2 |
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C. |
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D. |
4 |
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Hint |
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3. |
If KL = 27, find the measure of the dilation image for a scale factor of . |
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A. |
30 |
B. |
81 |
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C. |
24 |
D. |
9 |
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Hint |
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4. |
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´(-9, 18), N´(-9, 9), O´(0, 9) |
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B. |
M´(-1, 2), N´(-1, 1), O´(0, 1) |
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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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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  . |
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A. |
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B. |
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C. |
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D. |
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Hint |
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