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1. |
Find the next three terms in the arithmetic sequence 2, -1.5, -5, -8.5, …. |
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A. |
-12, -15.5, -19 |
B. |
-11.5, -14.5, -17.5 |
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C. |
-11, -13.5, -16 |
D. |
-13, -17.5, -22 |
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Hint |
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2. |
Find the 18th term of the arithmetic sequence
–4.5, -7.25, -10, -12.75, …. |
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A. |
-54 |
B. |
-45.75 |
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C. |
-51.25 |
D. |
-48.5 |
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Hint |
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3. |
Write an equation for the nth term of 3, 8.5, 14, 19.5, …. |
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A. |
 = 5.5n – 2.5 |
B. |
= 5.5n + 2 |
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C. |
= n – 4.5 |
D. |
= 3.5n |
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Hint |
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4. |
Write an equation for the nth term of –6, -14.5, -23, -31.5, …. |
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A. |
= -6n |
B. |
= -8.5n – 7 |
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C. |
= -14.5n + 8.5 |
D. |
= -8.5n + 2.5 |
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Hint |
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5. |
Write an equation for the nth term of –23, 38, 99, 160, …. |
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A. |
= 38n – 61 |
B. |
= 61n – 24 |
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C. |
= -46n |
D. |
= 61n – 84 |
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Hint |
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