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7.2 Common Assessment 2016
供稿人: Jacob
(原作者: Morris)
Which of the following is an arithmetic sequence:
19, 17, 16, 10
2, 4, 8, 16
1, -10, 100, -1000
-10, -8, -6, -4
Which variable expression describes the relationship
between consecutive terms in this sequence:
                        5, 25, 125, 625...
5n
n+ 20
n + 5
n + 100
Martin made an arithmetic sequence with consecutive
terms related by this rule: n + -3
13, 16, 19, 22
6, 3, 0, -3
3, 33, 333, 3333...
1/3, 3, 9, 27
What will be the next term in this arithmetic sequence:
                                  5, 8, 11, 14
17
20
15
18
9, 12, 15, 18, 21
Which sequence has a common ratio of -3 ?
9, 6, 3, 0, -3
1, -3, 9, -27, 81
1, 3, 9, 27, 81
Let n represent any number in this sequence

 4, 22, 40, 58...

Which of these can be used to determine the next
number?
n + 18
18n
n - 18
n
   18
Let n represent any number in this sequence

 2, 24, 46, 68

Which of these can be used to determine the next
number?
12m
 m
     12
m + 22
m + (-22)
Which statement is true about the pattern shown?

                          5, 20, 80, 320
The common ratio is 4
The common difference is 4
The common ratio is 15
The common difference is 15
1, 2, 4, 8, ...
3, 7, 11, 15,...
Which sequence is geometric?
2, 4, 6, 8, ...
4, 8, 12, 16, ...
Geometric Sequence
Common ratio is 4
Choose all the true statements for this sequence:
                               
                               9, 5, 1, -3
Arithmetic Sequence
 Common difference is -4
 The 6th term is -11
The next term is -7
Arithmetic Sequence
Geometric Sequence
Common ratio is -2
Choose all the true statements about this sequence:
                        
                            1, -2, 4, -8,...
Common difference is -3
The sixth term is 32
The next term is 16
What is the 8th term in the sequence:
                     3, 6, 12, 24, 48,.......
8th term is
Given this sequence, what is the common ratio?

                          90, 30, 10, 10
                                             3

3
1
    3
-60
30
The first term is 5, the common difference is -2.
What is the next term in the sequence?
7
-10
3
10
The first term is 100.  The common ratio is 1/2. 
 What is the next term in the sequence?
22.67
200
99.5
50
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