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WorksheetsRecursive Formulas 1
Total questions: 6
Worksheet time: 30mins
Name
Class
Date
1.
Given the recursive formula, find the first four terms:
an = an-1 + 5
a1 = -16
an = an-1 + 5
a1 = -16
a)
-16, -21, -26, -31
b)
5, -11, -27, -43
c)
-16, -80, -500, -200
d)
-16, -11, -6, -1
2.
Determine the 3rd term of the sequence.
a1=5
an= 2an-1 - 1
a)
14
b)
13
c)
17
d)
16
3.
Given the recursive formula below, find the first five terms.
u1 = 3
un = un-1 + 2
where n ≥ 2
u1 = 3
un = un-1 + 2
where n ≥ 2
a)
3, 5, 7, 9, 11
b)
5, 7, 9, 11, 13
4.
Which of the following recursive formulas represents the given sequence.
4, 12, 20, 28, 36, ...
a)
a1=4 , an=a(n−1)⋅3
b)
a1=4 , an=a(n−1)+8
c)
a1=4 , an=a(n−1)−8
d)
a1=4 , an=a(n−1)⋅9
5.
Find the first four terms of the sequence.
an= a(n-1) - 18 where a1=10
a)
18, 8, -2, -12
b)
28, 46, 64, 82
c)
-8, -26, -44, -60
d)
10, -8, -26, -44
6.
Find the first four terms of the sequence.
an= 2a(n-1) + n where a1= 0
a)
0, 0, 0, 0
b)
0, 1, 4, 12
c)
0, 1, 2, 4
d)
0, 2, 4, 8
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