Explicit Formula, Arithmetic Sequences and Recursive Formulas
Authored by Barbara White
Mathematics
9th Grade
CCSS covered
Used 7+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Given the sequence:
25, 21, 17, 13,...
Write the explicit equation that models the sequence.
an = 4n + 29
an = 25 +(-4)(n-1)
an = -25 +(-4)(n-1)
an = 4n + 25
Tags
CCSS.HSF.BF.A.2
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Write the explicit formula for the sequence -4, -6, -8, -10,...
an = -4 + (-2)(n-1)
an = 4 + (-2)(n-1)
an = -4 - 2(n-1)
an = -4 + 2(n-1)
Tags
CCSS.HSF.BF.A.2
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the common ratio for the sequence:
3, 15, 75...
12
1/5
5
4
Tags
CCSS.HSF.BF.A.2
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the explicit rule for the sequence:
11, 22, 44, 88...
an = 2(11)n-1
an = 11x2
an = 11(2)n-1
a1 = 11 ; an+1 = an * 2
Tags
CCSS.HSF.LE.A.2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a1?
3, 15, 75, 375, 1875...
Tags
CCSS.HSF.BF.A.2
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Given the sequence 4, 11, 18, 25...... what is a3 ?
4
11
18
25
Tags
CCSS.HSF.BF.A.2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a10 for the sequence
4, 4.5, 5, 5.5, 6.....
6
6.5
8.5
9.5
Tags
CCSS.HSF.BF.A.2
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