Aim: What is the arithmetic sequence?

Slides:



Advertisements
Similar presentations
Arithmetic Sequences and Series Unit Definition Arithmetic Sequences – A sequence in which the difference between successive terms is a constant.
Advertisements

4.7: Arithmetic sequences
Series NOTES Name ____________________________ Arithmetic Sequences.
Arithmetic Sequences Finding the nth Term. Arithmetic Sequences A pattern where all numbers are related by the same common difference. The common difference.
Bellwork:  Determine whether each of the following is Arithmetic (something was added each time), Geometric ( something was multiplied each time), or.
Arithmetic Sequences and Partial Sums
Arithmetic Sequences & Partial Sums Pre-Calculus Lesson 9.2.
ARITHMETIC SEQUENCES AND SERIES
Arithmetic Sequences (Recursive Formulas). Vocabulary sequence – a set of numbers in a specific order. terms – the numbers in the sequence. arithmetic.
Section 7.2 Arithmetic Sequences Arithmetic Sequence Finding the nth term of an Arithmetic Sequence.
Arithmetic Sequences. A mathematical model for the average annual salaries of major league baseball players generates the following data. 1,438,0001,347,0001,256,0001,165,0001,074,000983,000892,000801,000.
12-1 Arithmetic Sequences and Series. Sequence- A function whose domain is a set of natural numbers Arithmetic sequences: a sequences in which the terms.
ARITHMETIC SEQUENCES. (a) 5, 9, 13, 17, 21,25 (b) 2, 2.5, 3, 3.5, 4, 4, (c) 8, 5, 2, - 1, - 4, - 7 Adding 4 Adding.5 Adding - 3 Arithmetic Sequences.
12.2 Arithmetic Sequences ©2001 by R. Villar All Rights Reserved.
Arithmetic Sequences How do I define an arithmetic sequence and how do I use the formula to find different terms of the sequence?
Arithmetic Sequences Standard: M8A3 e. Use tables to describe sequences recursively and with a formula in closed form.
OBJ: • Find terms of arithmetic sequences
Aim: What is the arithmetic sequence? Do Now: Find the first four terms in the sequence whose n th term is 4n + 3. HW: p.256 # 4,5,6,8,10,12,16,18,19,20.
Homework Questions. Number Patterns Find the next two terms, state a rule to describe the pattern. 1. 1, 3, 5, 7, 9… 2. 16, 32, 64… 3. 50, 45, 40, 35…
Warm Up State the pattern for each step.
Aim: What is the geometric sequence?
Arithmetic Sequences How do I define an arithmetic sequence and how do I use the formula to find different terms of the sequence?
Arithmetic Sequences In an arithmetic sequence, the difference between consecutive terms is constant. The difference is called the common difference. To.
HW: Do Now Aim : How do we write the terms of a Sequence? Write the first 5 terms of the sequence, then find the thirty-first term:
Aim: What is the arithmetic series ? Do Now: Find the sum of each of the following sequences: a) b)
Sequences & Series. Sequence: A function whose domain is a set of consecutive integers. The domain gives the relative position of each term of the sequence:
Algebra 1 cc Function 4 Evaluate and write arithmetic sequences Recall: A function is relation in which each element of the domain is paired with exactly.
May 1, 2012 Arithmetic and Geometric Sequences Warm-up: What is the difference between an arithmetic and geometric sequence? Write an example for each.
Geometric and arithmetic sequences
Arithmetic Recursive and Explicit formulas I can write explicit and recursive formulas given a sequence. Day 2.
Unit 9: Sequences and Series. Sequences A sequence is a list of #s in a particular order If the sequence of numbers does not end, then it is called an.
11.2 – Arithmetic Sequences. How do I know if it is an arithmetic sequence? Look for a common difference between consecutive terms Ex: 2, 4, 8, 16...Common.
Arithmetic Sequences and Series Section Objectives Use sequence notation to find terms of any sequence Use summation notation to write sums Use.
Essential Question: How do you find the nth term and the sum of an arithmetic sequence? Students will write a summary describing the steps to find the.
Recognize and extend arithmetic sequences
8.1 Sequences.
4-7 Arithmetic Sequences
11.2 Arithmetic Sequences.
Arithmetic and Geometric Means
Aim: What is the arithmetic and geometric sequence?
Arithmetic and Geometric Sequences
Arithmetic Sequences & Series
AKS 67 Analyze Arithmetic & Geometric Sequences
Patterns & Sequences Algebra I, 9/13/17.
5.3 Arithmetic Series (1/5) In an arithmetic series each term increases by a constant amount (d) This means the difference between consecutive terms is.
4.7: Arithmetic sequences
Warm Up 1st Term:_____ 1st Term:_____ 2nd Term:_____ 2nd Term:_____
Warm Up 1st Term:_____ 1st Term:_____ 2nd Term:_____ 2nd Term:_____
WARM UP State the pattern for each set.
3-4: Arithmetic Sequences
4-7 Sequences and Functions
Aim: What is the sequence?
4n + 2 1st term = 4 × = 6 2nd term = 4 × = 10 3rd term
Recursively Defined Sequences
Arithmetic Sequences.
Arithmetic Sequences In an arithmetic sequence, the difference between consecutive terms is constant. The difference is called the common difference. To.
Arithmetic Sequence A sequence of terms that have a common difference between them.
Unit 3: Linear and Exponential Functions
Arithmetic Sequences.
Warm up! Find the pattern for each set.
11.2 – Arithmetic Sequences
Arithmetic Sequence A sequence of terms that have a common difference between them.
Arithmetic Sequence A sequence of terms that have a common difference (d) between them.
8.5 Using Recursive Rules with Sequences
Recognizing and extending arithmetic sequences
Does each term increase/decrease by the same added amount each time?
Module 3 Arithmetic and Geometric Sequences
4-7 Arithmetic Sequences
Homework Questions.
Sequences.
Presentation transcript:

Aim: What is the arithmetic sequence? Do Now: Find the first four terms in the sequence whose nth term is 4n + 3. HW: p.256 # 4,5,6,8,10,12,16,18,19,20

Each term after the first term is four more than the previous term 7, 11, 15, 19 Each term after the first term is four more than the previous term 4 4 4 The sequence an = 4n + 3 is an arithmetic sequence. An arithmetic sequence has consecutive terms with a common difference. In this case, the common difference is 4. For an arithmetic sequence, the recursive formula is: an = a1 + d(n – 1) Where d is the common difference

For the arithmetic sequence 100, 97, 94, 91,…, find : a) the common difference b) the 20th term of the sequence d = – 3 a20 = a1 + d(n – 1) = 100 + -3(20 – 1) = 100 + -3(19) = 100 – 57 = 43

The 4th term of an arithmetic sequence is 80 and the 12th term is 32. a. What is the common difference? b. What is the first term of the sequence? a. b. 80 = a1 + 3(-6), 80 = a1 – 18, a1 = 98

If 4 and 28 are the 1st and 5th terms of an arithmetic sequence, find the 2nd, 3rd and 4th terms of the sequence. Use the recursive formula to find d The numbers 10, 16 and 22 are called arithmetic means between 4 and 28. An arithmetic mean is the average of the term before it and the term after it.

Scott is saving to buy a guitar Scott is saving to buy a guitar. In the first week, he put aside $42 that he received for his birthday, and in each of the following weeks, he added $8 to his savings. He needs $400 for the guitar that he wants. In which week will he have enough money for the guitar? Let a1 = 42 and d = 8 then an = 400 46th week

a. Find the common difference b. Write the nth term formula 1. Given an arithmetic sequence 3,6,9,12,…, n = 8 a. Find the common difference b. Write the nth term formula c. Find the value of 8th term d = 3 an = 3 + 3(n – 1) a8 = 24 2. Write the first six terms of the arithmetic sequence that has 12 for the first term and 42 for the six term. 12, 18, 24, 30, 36, 42 3. Find four arithmetic means between 3 and 18 6, 9, 12, 15