Arithmetic and Geometric Sequences
Authored by Arniece Gee
Mathematics
9th Grade
CCSS covered
Used 660+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
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
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
This is an arithmetic sequence. 5, 2, –1, –4, . . .
What is a7 ?
-13
-11
-18
-22
Tags
CCSS.HSF.BF.A.2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In a certain arithmetic sequence, a5 = 12 and a6 = 16. What is a1 ?
-8
-4
4
8
Tags
CCSS.HSF.BF.A.2
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The first term of an arithmetic sequence is b and the second term is c. What is the explicit formula to find the nth term of
the sequence?
an = b + (n − 1) c
an = c + (n − 1) b
an = b + (n − 1) (b − c)
an = b + (n − 1) (c − b)
Tags
CCSS.HSF.BF.A.2
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The explicit formula for a sequence is an = 5 − 3n. What is the value of a22 ?
a22 = -61
a22 = 61
a22 = -1
a22 = -51
Tags
CCSS.HSF.BF.A.2
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
In an arithmetic sequence, the third term is 1 and the ninth is 49. What is the explicit formula for the sequence?
an = 8n − 15
an = −8n − 15
an = 8n − 23
an = −8n − 23
Tags
CCSS.HSF.BF.A.2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
This is an arithmetic sequence. 8, 7.3, 6.6, 5.9, . . .
What function describes the sequence?
f (x) = −0.7x + 8
f (x) = −0.7x + 8.7
f (x) = 0.7x + 8
f (x) = 0.7x + 8.7
Tags
CCSS.8.F.B.4
CCSS.HSF.LE.A.2
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