# data[].attributes.body
How to Solve an Arithmetic Sequence:
To find the common difference, subtract the first term from the second term. Notice the linear nature of the scatter plot of the terms of an arithmetic sequence. The domain consists of the counting numbers 1, 2, 3, 4, ... and the range consists of the terms of the sequence.

# data[].attributes.headline
How to Find the Sum of a Sequence in Summation Notation

# data[].attributes.subject
How to Find the Sum of a Sequence in Summation Notation

# data[].attributes.body
(first-last/2 )n

# data[].attributes.headline
Intro into Arithmetic Sequence You Tube Video

# data[].attributes.subject
Intro into Arithmetic Sequence You Tube Video

# data[].attributes.body
https://www.youtube.com/watch?v=_cooC3yG_p0

# data[].attributes.body
Arithmetic Sequence: sequence of numbers such that the difference between the consecutive terms is constant.
Geometric Sequence: sequence of numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the common ratio.
Common Ratio: ratio of a term to the previous term. This ratio is usually indicated by the variable r.
Common Difference: difference between two numbers in an arithmetic sequence. Keep reading for a detailed definition, the formula for determining the common difference, and some example problems.