Pattern Rule
12, 16, 20, 24, 28
What is the pattern rule?
Start at 12. Add 4 each time.
5, 10, 15, 20
What is the algebraic expression?
5x or 5n
The pattern rule is start at 4 and multiply by 2 each time. What are the first four numbers in the pattern?
4, 8, 16, 32
What is the 25th term of this expression 2x + 10
60
What is the sequence of the pattern 2x?
2, 4, 6, 8 (remember a sequence is a series of numbers)
94, 74, 54, 34, 14
What is the pattern rule?
Start at 94. Subtract 20 each time.
4, 6, 8, 10
What is the algebraic expression?
2x + 2 or 2n + 2
The pattern rule is start at 13 and add 7 each time. What are the first four numbers in the pattern?
13, 20, 27, 34
295
Give an example of a growing pattern where the pattern rule is add 6 each time (four numbers).
Various answers
31, 40, 49, 58, 67
What is the pattern rule?
Start at 31. Add 9 each time.
2, 6, 10, 14
What is the algebraic expression?
4x - 2
The pattern rule is start at 36 and subtract 12 each time. What are the first four numbers in the pattern?
36, 24, 12, 0
Find the 7th term in this expression 8x - 15
41
What are the first 3 coordinates of the graph with this expression 2x -1? Start with (0, __)
(0,-1) (1,1) (2,3)
35, 28, 21, 14
What is the pattern rule
Start at 35 and subtract 7 each time.
28, 21, 14, 7
What is the algebraic expression?
-7x + 35
The pattern rule is start at 14 and alternately add 5, then add 10. What are the first four numbers in the pattern?
14, 19, 29, 34
Find the 0 term of this expression
-4x + 12
12
What is the algebraic expression of a graph with the following coordinates (0, 5) (1, 7) (2, 9)
2x + 5 Because the pattern grows by 2 (second number) and the zero term is 5 and if you try 2x2 + 5 you get the third coordinate (2,9)
47, 41, 35, 29, 23
What is the pattern rule?
Start at 47. Subtract 6 each time.
12, 4, -4, -12
What is the algebraic expression?
-8x + 20
The pattern rule is start at 100 and alternately subtract 25, then add 3. What are the first four numbers in the pattern?
100, 75, 78, 53
What is the value of the 12th term of this expression -2x + 10
-14
What is the algebraic expression of a graph with these coordinates (2, 0) (4, 2) (6, 4) Look carefully here.
x -2 (I didn't give you the first terms and I jumped from the 2nd to 4th term. You had to find the first term by working backwards or looking at how to get from x to y)