Geometric and Arithmetic Sequences
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the common ratio: 5, 25, 125, 625...
25
20
5
4
Tags
CCSS.HSF.BF.A.2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which sequence is an arithmetic sequence?
3, 6, 2, 7, ...
3, 6, 12, 24, ...
3, 6, 10, 15, ...
3, 7, 11, 15, ...
Tags
CCSS.HSF.BF.A.2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
This is an arithmetic sequence. 5, 2, –1, –4, . . .
What is a7 (7th term) ?
-13
-11
-18
-22
Tags
CCSS.HSF.BF.A.2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Create the explicit formula for the arithmetic sequence: 2, 8, 14, ... (Hint: Write your formula and then simplify it.)
an=2+6n
an=-6+6n
an=6n-4
an=4-6n
Tags
CCSS.HSF.BF.A.2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a5 (5th term) in the sequence defined as follows? an = 5 ⋅ 2(n-1)
a5 = 160
a5 = 40
a5 = 10
a5 = 80
Tags
CCSS.HSF.BF.A.2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the explicit rule for the geometric sequence: 11, 22, 44, 88...
un = 2(11)n-1
un = 11(2)
un = 11(2)n-1
Tags
CCSS.HSF.BF.A.2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the 38th term of this arithmetic sequence? {26, 22, 18, 14, ... }
-4
10
-122
174
Tags
CCSS.HSF.BF.A.2
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