Geometric Series Review
Authored by Anthony Clark
Mathematics
12th Grade
CCSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the common ratio: 4, -16, 64, -256, ...
r = -4
r = 2
r = -2
r = 4
Tags
CCSS.HSF.BF.A.2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the common ratio for the following sequence: -3, 15, -75, 375, ...
12
-1/5
-5
3
Tags
CCSS.HSF.BF.A.2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the rule for finding an of a geometric sequence is
an = 10(2)n-1 . Then what is the common ratio(r) of the sequence?
2
10
20
2n
Tags
CCSS.HSF.BF.A.2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the 9th term in a geometric sequence with a common ratio of 2 and a first term of 3?
384
768
1,536
27
Tags
CCSS.HSF.BF.A.2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the twelfth term in the sequence 3, -6, 12, -24. . . ? (hint: write the general rule and then find the term when n=12)
-2,048
6,144
-6,144
-531,441
Tags
CCSS.HSF.BF.A.2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Write the general rule for the geometric sequence 5, 45, 405, ...?
an = an-1 x 5
an = 5(9)n-1
an = 9(5)n-1
an = 5 + (n-1)9
Tags
CCSS.HSF.BF.A.2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the general rule for the geometric sequence where the 8th term is 6,561 and r = 3?
Tags
CCSS.HSF.BF.A.2
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