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Worksheetsmath quizizz
Total questions: 15
Worksheet time: 8mins
1. Which of the following is an arithmetic sequence?
a. 1,2,3,5,7,9…
b. 1,10,20,30…
c. 1,-1,-3,-5…
d. 7,-7,7,-7...
2. 3,-2,-7… is an arithmetic sequence. What is the common difference of the sequence?
a. 1
b. -5
c. 5
d. -1
3. a1= 3 and a2=7. Which is true?
a. An = 4n-3
b. An =4n-1
c. An=4n+3
d. An=4n+1
4. A3=4 and a5=14. What is the common difference?
a. 6
b. 5
c. 4
d. 3
5. If a1=4 and the common is 3, then what is the sum of the first twenty terms of the sequence?
a. 620
b. 630
c. 640
d. 650
6. A1=-3 and a5=5. Find a10?
a. 14
b. 15
c. 16
d. 17
7. If a3=11 and a5=7 and ak is the k-th term of the sequence and ak=-9, then what is the value of k?
a. 11
b. 12
c. 13
d. 14
8. If an=2n-8, then which one is not a term of this sequence?
a. 13
b. 16
c. 204
d. 198
9. -7,-4,-1,2,5… is an arithmetic sequence. What is the common difference?
a. -3
b. 3
c. 4
d. -4
10. An=3n+2 and bn=2-3n and Cn=An+bn. Find C4?
a. -4
b. 12
c. 28
d. 4
11. Which of the following is not an arithmetic sequence.
a. 1, 2, 3, 4, 5, …
b. b. 3, 9, 27, 81, ...
c. 4.5, 5.0, 5.5, 6.0, …
d. 13, 2, -9, -20, -31 …
12. What is the 8th term of the following arithmetic sequence: -5, -1, 3, 7, 11, ..
a. 23
b. 19
c. 27
d. 22
13. What is NOT true about the following arithmetic sequence: 25, 32, 39, 46, …
a. The common difference is 7.
b. The 7th term is 60.
c. The 6th term is 60.
d. The general rule is a(n) = 18 + 7n.
14. The first four terms of an arithmetic sequence are 8, 14, 20 and 26. What is the 12th term?
a. 12
b. 74
c. 68
d. 80
15. What is the common difference of the arithmetic sequence? 3, 10, 17, 24, ...
a. 3
b. -7
c. 10
d. 7
