WorksheetsUnit 11 Review #2
Total questions: 19
Worksheet time: 30mins
Name
Class
Date
1.
What are the first 4 terms of an arithmetic sequence with a common difference of (-6) if the first term is 76?
a)
76, 70, 64, 58
b)
76, 82, 88, 94
c)
70, 64, 58, 52
d)
82, 88, 94, 100
2.
What kind of sequence is the pattern 32, 38, 44, 50, 56, ...?
a)
arithmetic
b)
geometric
c)
neither
3.
Given the following sequence, write a formula to determine the nth term.
12, 23, 34, 45, 56
12, 23, 34, 45, 56
a)
f(x) = 12x + 11
b)
f(x) = 11x + 12
c)
f(x) = 11x + 1
d)
f(x) = 12x + 1
4.
How many coins are in the 30th stack?
a)
92
b)
43
c)
89
d)
60
5.
Carey is organizing her books and putting them on shelves. She put 2 books on the first shelf, 8 books on the second shelf, 32 books on the third shelf, and 128 books on the fourth shelf. What kind of sequence is this?
a)
Geometric
b)
Arithmetic
c)
Both
d)
Neither
6.
Which formula is used to find the explicit equation for geometric sequences?
a)
an = a(n-1) + d
b)
an = a(n-1) * r
c)
an = a1 + d(n-1)
d)
an = a1 * rn-1
7.
Which formula is used to find the recursive equation for geometric sequences?
a)
an = a(n-1) + d
b)
an = r⋅a(n-1)
c)
an = a1 + d(n-1)
d)
an = a1 ⋅ rn-1
8.
Which formula is used to find the recursive equation for arithmetic sequences?
a)
an = a(n-1) + d
b)
an = a(n-1) * r
c)
an = a1 + d(n-1)
d)
an = a1 * rn-1
9.
Which formula is used to find the explicit equation for arithmetic sequences?
a)
an = a(n-1) + d
b)
an = a(n-1) * r
c)
an = a1 + d(n-1)
d)
an = a1 * rn-1
10.
What is a5 in the sequence defined as follows?
an = 5 ⋅ 2(n-1)
an = 5 ⋅ 2(n-1)
a)
a5 = 160
b)
a5 = 40
c)
a5 = 10
d)
a5 = 80
11.
Determine whether the sequence is arithmetic, geometric, or neither.
a)
arithmetic
b)
geometric
c)
neither
12.
Determine whether the sequence is arithmetic, geometric, or neither.
a)
arithmetic
b)
geometric
c)
neither
13.
Write the explicit formula for the geometric sequence.
a)
an = 7(1)n
b)
an = 7(-1)n
c)
an = 7(-1)n-1
d)
an = -1(7)n-1
14.
Write the explicit formula for the geometric sequence.
a)
an = 4(3)n-1
b)
an = 3(4)n-1
c)
an = -4(3)n-1
d)
an = 3(-4)n-1
15.
Write the explicit formula for the geometric sequence.
a)
an = 162(2/3)n-1
b)
an = (2/3)(162)n-1
c)
an = 162(3/2)n-1
d)
an = 162 + (n-1)(-54)
16.
Write the recursive formula of 13, 9, 5...
a)
an=an-1-4
b)
an=an-1+3
c)
an=an-1-5
d)
an=an-1+4
17.
What kind of formula is an = 5n + 3?
a)
Arithmetic Recursive
b)
Arithmetic Explicit
c)
Geometric Recursive
d)
Geometric Explicit
18.
What does an-1 mean?
a)
the current term
b)
the next (future) term
c)
the last (previous) term
19.
Write a recursive rule for the sequence 17, 1, -15, -31 . . .
a)
an = an-1 + 16
a1=17
a1=17
b)
an = an-1 - 17
a1=17
a1=17
c)
an = an-1 - 15
a1=17
a1=17
d)
an = an-1 - 16
a1=17
a1=17
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