CCSS IP Math I 2.9.1 Example 2
Write a linear function that corresponds to the following arithmetic sequence: 8, 1, –6, –13, …
- Find the common difference by subtracting two successive terms.
- Confirm that the difference is the same between all of the terms.
- Identify the first term .
- Write the explicit formula.
- Simplify the explicit formula.
- Write the formula in function notation.