Explicit Formulas of Geometric Sequences
Authored by Barbara White
Mathematics
9th - 10th Grade
CCSS covered
Used 3+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the common ratio for the geometric sequence:
2, -4, 8, -16, ...
2
-2
1/2
-1/2
Tags
CCSS.HSF.BF.A.2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the common ratio for the geometric sequence:
10, 20, 40, 80, ...
10
2
1/2
4
Tags
CCSS.HSF.BF.A.2
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Write the explicit formula for the geometric sequence.
10, 20, 40, 80, ...
an = 10(2)n-1
an = 10(2)n
an = 2(10)n-1
an = 2(10)n
Tags
CCSS.HSF.BF.A.2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the common ratio for the geometric sequence:
7, -7, 7, -7, ...
1
-7
7
-1
Tags
CCSS.HSF.BF.A.2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Write the explicit formula for the geometric sequence.
7, -7, 7, -7, ...
an = 7(1)n
an = 7(-1)n-1
an = 7(-1)n
an = -1(7)n-1
Tags
CCSS.HSF.BF.A.2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the common ratio for the geometric sequence:
3, -12, 48, -192, ...
-4
4
1/4
-1/4
Tags
CCSS.HSF.BF.A.2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Write the explicit formula for the geometric sequence.
3, -12, 48, -192, ...
an = 4(3)n-1
an = -4(3)n-1
an = 3(4)n-1
an = 3(-4)n-1
Tags
CCSS.HSF.BF.A.2
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