Determine whether each sequence is arithmetic. If so, find the common difference (report your answer as d=#). If not, answer "not arithmetic"
Question 1
1.
12, 19, 26, 33 ...
Question 2
2.
7, -18, -43, -68 ...
Question 3
3.
30, -5, -40, -75 ...
Question 4
4.
26, 76, 126, 176 ...
Given the first term and the common difference of an arithmetic sequence, find the first 5 terms and he explicit formula.
Question 5
5.
a1=28, d=10
First 5 terms:
Question 6
6.
a1= -38, d= -100
First 5 terms:
Question 7
7.
a1 = 8, d = 4
Frist 5 terms:
Question 8
8.
a1 = 18, d = -3
Given the first term and the common difference of an arithmetic sequence find the recursive formula.
Question 9
9.
a1=39, d= -5
Question 10
10.
a1= -26, d= 200
Question 11
11.
a1 = 25, d = 5
Question 12
12.
a1 = 15, d = -10
Question 13
13.
Given two terms in an arithmetic sequence find the common difference.
Hint: slope! Use the n-value as x and the output as y.
a18=3362 and a38=7362
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