Arithmetic Sequence

4. 1.) 1, 2, 3, 4, 5,1.) 1, 2, 3, 4, 5, 6, 7, 8
2.) 2, 5, 8, 11, _2.) 2, 5, 8, 11, 14, 17, 20
5.) 1, 4, 16, 64,
3.) 5, 10, 15, 20, 25, 30, 35
4.) 1, 2, 4, 8,4.) 1, 2, 4, 8, 16, 32, 64
5.) 1, 4, 16, 64, 256, 1024, 4096
3.) 5, 10, 15, 20,

7. By pattern searching, identify the 10th term
of the following.
1.) 1, 2, 3, 4, 5, 6, 7, 8
2.) 2, 5, 8, 11, 14, 17, 20
10th term is 10
10th term is 29
Just add 1 to the preceding term
1 is called the common difference (d) and is
obtained by subtracting the 2nd term by the 1st
term, 3rd term by the 2nd term and so on.
Just add 3 to the preceding term
Note that the sequence 1, 2, 3, 4, 5, 6, 7, 8 with
the common difference 1 can be expressed as
1, 1+1, 2+1, 3 + 1, 4 + 1, 5 + 1, 6 + 1, 7 + 1, 8 + 1

12. 4.) 6, 12, 18, 24, 30, 36
5.) 28, 25, 23, 20, 17, 14
4.) 6, 12, 18,
5.) 28, 25, 23,
d = 12 – 6 d = 18 – 12
= 6 = 6
d = 25 – 28 d = 23 – 25
= -3 = -3