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1. |
The distance between the points with coordinates (-8, 4) and (1, a) is 15 units. Find the value of a. |
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A. |
8 or 16 |
B. |
-8 or 16 |
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C. |
-8 |
D. |
8 |
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Hint |
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2. |
What is the perimeter of a triangle whose vertices are the points (–1, 4), (–1, –2), (5, –2)? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
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Hint |
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3. |
Greta and her grandmother planned to attend a downtown play. Greta lives 10 miles south and 4 miles west of downtown, while her grandmother lives 2 miles south and 2 miles east of downtown. If Greta picks up her grandmother on the way (rather than meet her at the play), how many miles does that add to her trip? |
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A. |
 |
B. |
 |
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C. |
2 |
D. |
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Hint |
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4. |
Find the value of a if the distance between (4, 3) and (–1, a) is 13 units. |
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A. |
a = –15 only |
B. |
a = 15 or –9 |
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C. |
a = –15 or 9 |
D. |
a = 15 only |
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Hint |
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5. |
What is the distance between (2, 5) and (11, –3)? |
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A. |
17 |
B. |
 |
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C. |
145 |
D. |
 |
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Hint |
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