2.4C arith sequences recursive rules day 3.notebook October 04, 2018

Warm Up

Bentley is studying diligently to improve his grade in Algebra I. His average after the first week of school was was 75, week 2 was 78, and week 3 was 81. Write an equation to represent his improvement using the closed (explicit) formula.

write an explicit rule representing the graph.

Arithmetic Sequences

recursive formula:

a formula used to find the next term of a sequence when the previous term is known

Arithmetic Sequencesrecursive formula:

arithmetic:

*learn these formulas; not optional.

2.4C arith sequences recursive rules day 3.notebook October 04, 2018

Ex: The first term is 1 for an=an­1 ­ 2. Find the next two terms.

Find the next term and write the recursive rule.

x y1 32 133 234 33n

Find the next term and write the recursive rule. x y 1 19 2 13 3 7 4 1 n

Write the explicit rule and the recursive rule.

a1 = 15 and d = 5

explicit recursive

2.4C arith sequences recursive rules day 3.notebook October 04, 2018

practice assignments~

Class work: Explicit and Recursive Sequence practice ws AND finish Shortcut WS

I can express an arithmetic sequence recursively.

Homework: Sequences Practice Quiz