Forumlas
Name this Formula:
a_n=a_(n-1)+d
Arithmetic Recursive Formula
List of ordered numbers following a consistent pattern.
Sequence
What is the 4th term in the following sequence:
3,6,9
12
What is the common difference of this sequence:
5,10,15
5
a1
First Term
Name this Formula:
a_n=a_1+d(n-1)
Explicit Formula
How much you are adding or subtracting to find the next number in a sequence.
Common Difference
What is the next term in the following sequence:
23,36,49
62
What is the common difference of the sequence:
7,13,19
6
a12
12th Term
Write this as an Explicit Formula finding the 4th term
a_1=17 , d=3
a_4=17+3(4-1)
Describes the Term of the Sequence
an
What is the 5th term in the following sequence:
17,12,7
-3
What is the common difference of the sequence:
84,76,68
8
18+4(n-1)
nth term
What this as a Arithmetic Recursive Formula
d=8
a_n=a_(n-1)+8
The place the term is in the sequence.
Index (n)
What is the 6th term in the following sequence:
-1,7,15
39
What is the common difference of the Sequence:
-21,-8,5
13
5+7(10-1)
10th term
Write this as an Explicit Formula finding the 17th term
a_1=12 , d=4
a_17=12+4(17-1)
Defines a term based on the terms that came before it.
Arithmetic Recursive Formula
What is the 7th term in the following sequence:
22,11,0
-44
What is the common difference of the Sequence:
-44,-61.5,79
17.5
3350-115(59)
60th term