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1. |
Write the first four terms of the geometric sequence in which a1 = -3 and r = -4. |
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A. |
–3, -12, -48, -192 |
B. |
3, 12, 48, 192 |
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C. |
3, -12, 48, -192 |
D. |
-3, 12, -48, 192 |
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Hint |
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2. |
What is the fifth term of a geometric sequence if a1 = 7 and r = 0.2? |
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A. |
5.6 |
B. |
0.28 |
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C. |
0.0112 |
D. |
1.4 |
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Hint |
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3. |
Find three geometric means between 3 and 48. Then select the graph that uses the x-axis for the number of the term and the y-axis for the term itself. |
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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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4. |
Find the eighth term of a geometric sequence for which a3 = 98 and r = 7. |
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A. |
1,647,086 |
B. |
11,529,602 |
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C. |
5,764,801 |
D. |
823,543 |
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Hint |
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5. |
Which of the following is not a geometric sequence? |
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A. |
3, 6, 12, 24, … |
B. |
6, 4 , 3, 1 , … |
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C. |
4, 2, 1, , … |
D. |
1, 4, 16, 64 |
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Hint |
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