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Sequences

Sequences

Sequences: Quiz 1: Sequential Essentials and Other Well-Timed Rhymes Quiz

Think you’ve got your head wrapped around Sequences? Put your knowledge to the test. Good luck — the Stickman is counting on you!
Q. An arithmetic sequence is a sequence where


the sum of successive terms is constant.
the difference of successive terms is constant.
the product of successive terms is constant.
the ratio of successive terms is constant.
Q. The sequence

-1, -1, -1, -1,...

is



arithmetic only.
geometric only.
both arithmetic and geometric
neither arithmetic nor geometric.
Q. The sequence

0, -3, -6, -9, ...

is



arithmetic only.
geometric only.
both arithmetic and geometric
neither arithmetic nor geometric.
Q. The sequence

60, -30, 15, -7.5,...

is



arithmetic with d = -90
arithmetic with d = 30
geometric with 
geometric with r = -2
Q. An arithmetic sequence has a1 = 5 and d = 9. What is a25?


221
225
230
239
Q. An arithmetic sequence has a11 = 4.54 and a20 = 9.04. Find a1 and d.


d = 0.5 and a1 = -0.96
d = 0.5 and a1 = -0.46
d = 0.45 and a1 = -0.41
d = 0.45 and a1 = 0.04
Q. A geometric sequence has a = 100,000 and r = 0.2. Find a10.


0.256
0.0512
0.01024
0.002048
Q. A geometric sequence has a5 = c and a10 = d. Which of the following is true?


Q. In a geometric sequence, the general term is given by


an = a1rn – 1
an = a1rn
an = a1rn + 1
an = a1 + rn – 1
Q. An arithmetic sequence has a8 = 9.5 and a9 = 9.75. What is a2?


7.5
7.75
8
8.25
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