Sequences Review
Authored by Jeffrey Dong
Mathematics
9th - 12th Grade
CCSS covered
Used 7+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the explicit formula for the sequence:
2, -8, 32, -128.
an = 2 ⋅ (-4)n-1
an = -4⋅(2)n-1
an = an-1 ⋅ (-4)
None of the above
Tags
CCSS.HSF.LE.A.2
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the recursive formula for the sequence:
r = 0.5 , a1 = 8
an = 0.5 ⋅ (8)n-1
an = 8 ⋅(0.5)n-1
an = an-1 ⋅ (0.5)
None of the above
Tags
CCSS.HSF.BF.A.2
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the explicit formula for the sequence:
r = 0.5 , a1 = 8
an = 0.5 ⋅ (8)n-1
an = 8 ⋅(0.5)n-1
an = an-1 ⋅ (0.5)
None of the above
Tags
CCSS.HSF.BF.A.2
4.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
What is the explicit formula for the sequence:
d = -4 , a1 = 7
Select ALL that apply
an = 7 - 4(n-1)
an = -4n + 11
an = -4 + 7(n-1)
an = 7 ⋅ (-4)n-1
Tags
CCSS.HSF.BF.A.2
5.
MATH RESPONSE QUESTION
3 mins • 1 pt
Type the explicit formula for the geometric sequence:
a3 = 8 a6 = -64
You do NOT need an in your answer
Use x instead of n (Quizizz coding doesn't use n).
Mathematical Equivalence
ON
Tags
CCSS.HSF.BF.A.2
6.
MATH RESPONSE QUESTION
3 mins • 1 pt
Type the explicit formula for the arithmetic sequence:
a7 = -22 a11 = -34
You do NOT need an in your answer
Use x instead of n (Quizizz coding doesn't use n).
Mathematical Equivalence
ON
Tags
CCSS.HSF.BF.A.2
7.
MATCH QUESTION
3 mins • 1 pt
Match the following
an = 5 + 3(n-1)
a1 = -20
an = an-1 - 6
an = -20 - 6(n-1)
an = 0.5 ⋅ (8)n-1
a1 = 0.5
an = an-1 ⋅ 8
an = 8 ⋅ (0.5)n-1
an = 24 ⋅ (3)n-1
an = an-1 + 3
a1 = 5
a1 = 8
an = an-1 ⋅ 0.5
a1 = 24
an = an-1 ⋅ 3
Tags
CCSS.HSF.LE.A.2
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