Question

Determine if the sequence is arithmetic, geometric, or neither. For arithmetic and geometric sequences, identify the common difference or common ratio. For neither, enter n/a. {-45, -38, -31, -24, ...}

Arithmetic, Geometric, or Neither?

Common difference, ratio, or neither?

Answer 1

9514 1404 393

Answer:

• Arithmetic
• common difference = 7

Explanation:

First differences are ...

-38 -(-45) = 7

-31 -(-38) = 7

-24 -(-31) = 7

The first differences are constant, so this is an arithmetic sequence with a common difference of 7.