Write the first five terms of each sequence. Determine whether each sequence is arithmetic, geometric, or neither.

1.  for .
2.  for .
3.  for .
4.  for .

The first 5 terms of some sequences are given. State a rule that each sequence could follow.

1. 2, 4, 6, 8, 10
2. 5, 7, 9, 11, 13
3. 50, 25, 0, -25, -50
4. , 1, 3, 9, 27

Function is defined by , and is defined by .

1. Find and .
2. Find and .

Here is the graph of two sequences.

Two sequences plotted on grid, origin "O". Term number on x-axis. Value of term on y-axis. Sequence A has points at (0 comma negative 1), (1 comma 2), (2 comma 5), (3 comma 8), (4 comma 11), (5 comma 14), (6 comma 17) and (7 comma 20). Sequence B has points at (0 comma 0 point 5), (1 comma 1), (2 comma 2), (3 comma 4), (4 comma 8), and (5 comma 16).

term number	sequence	sequence
0	-1
1
2
3
4
5
6

1. Complete the table for each sequence.
2. For sequence , describe a way to produce a new term from the previous term.
3. For sequence , describe a way to produce a new term from the previous term.
4. Which of these is a geometric sequence? Explain how you know.