Match the vocabulary word with the correct definition.

1. coefficient an expression involving one or more variable terms
2. constant a number; a term containing no variables
3. arithmetic sequence a circle filled in to show that the point is a part of the solution set
4. closed circle the difference between any two consecutive terms of an arithmetic sequence
5. algebraic expression the ratio of a term to the previous term in a geometric sequence
6. common ratio a set of numbers where the difference is the same between any two consecutive terms
7. common difference the number in front of a variable in a term