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1. |
A projector focuses an image from the 15-millimeter film onto a screen that is 2.5 meters wide. What is the scale factor? |
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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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2. |
Find the coordinates of the image of the point A(3, 9) for a dilation with the scale factor of  |
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A. |
A'(6, 18) |
B. |
A'(9, 27) |
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C. |
A'(2, 6) |
D. |
A'(4.5, 13.5) |
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Hint |
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3. |
What is the ordered pair of the image of A(-2, 4) if the scale factor is 5? |
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A. |
 (3, 9) |
B. |
(10, 20) |
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C. |
(-0.4, 0.8) |
D. |
(-10, 20) |
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Hint |
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4. |
What is the ordered pair of the dilation of A( ,  ) if the scale factor is  ? |
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A. |
(2, ) |
B. |
( ,  ) |
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C. |
(,  ) |
D. |
(,  ) |
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Hint |
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5. |
A copying machine is set to dilate the picture by a factor of  . If a picture is 4 inches by 7 inches, find the dimensions of a copy made by the machine. |
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A. |
6 inches by 10.5 inches |
B. |
2.9 inches by 5 inches |
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C. |
5.6 inches by 9.8 inches |
D. |
6.3 inches by 10.4 inches |
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Hint |
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