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2.2

Activity

Here’s a pattern.
1. How do you see the pattern changing?
2. Extend the pattern to show your prediction of the next two steps.
Here are tables that represent the pattern.

step 0 1 2 3 6 11

3 5 7

step 0 1 2 3 6 11

3 4 5 9
1. In each pattern, what quantity is represented in the second row?
2. Complete each table.
3. Describe each pattern as linear, exponential, or neither. Be prepared to explain how you know.
Here is another pattern.
1. Lin says that step 3 will have 8 segments. Andre says that step 3 will have 7 segments. How does each student see the pattern growing?
2. Complete the tables to show the relationship between step number and number of segments, as Lin and Andre would see it.
3. Describe each pattern as linear, exponential, or neither. Be prepared to explain how you know.

step	0	1	2	3	6	11
	3	5	7

step	0	1	2	3	6	11
	3	4	5		9

Lin

step	0	1	2	3	6	9
number of segments	1	2	4

Andre

step	0	1	2	3	6	9
number of segments	1	2	4

2.3