advertisement

Algebraic Sequences

43 %
57 %
advertisement
Information about Algebraic Sequences
Education

Published on November 11, 2008

Author: nora823

Source: slideshare.net

Description

This is a lesson/slideshow presentation I made for my 8th grade PreAlgebra students.
advertisement

Algebraic Sequences Obj. Generate an algebraic expression given part of a sequence.

Algebraic Sequence A sequence which has a constant difference between terms. Examples: 1, 5, 9, 13, 17 -7, -1, 5, 11, 17 21, 20, 19, 18, 17

A sequence which has a constant difference between terms.

Examples:

1, 5, 9, 13, 17

-7, -1, 5, 11, 17

21, 20, 19, 18, 17

EXAMPLE 1 Write an expression for the n th term in the sequence 3, 4, 5, 6, 7, …? Step 1 :  Construct a process chart showing the position and the corresponding term. 3 4 5 6 7 +1 +1 +1 +1 Position “ 0” 1 2 3 4 5 n Term

Determine the common difference (the change) of the terms. STEP 2 Common Difference: 1 This is the coefficient of n . 1 n

Reverse the pattern to find the “zero” term. STEP 3 3 4 2 5 6 7 -1 Zero term: 2 Position “ 0” 1 2 3 4 5 n Term

Common Difference: 1 FINISHING IT OFF Zero Term: 2 1 2 n + 2 n +

EXAMPLE 1 Write an expression for the n th term in the sequence 12, 8, 4, 0, -4, …? Step 1 :  Construct a process chart showing the position and the corresponding term. 12 8 4 0 -4 -4 -4 -4 -4 Position “ 0” 1 2 3 4 5 n Term

Determine the common difference (the change) of the terms. STEP 2 Common Difference: -4 This is the coefficient of n . -4 n

Reverse the pattern to find the “zero” term. STEP 3 12 8 16 4 0 -4 +4 Zero term: 16 Position “ 0” 1 2 3 4 5 n Term

Common Difference: -4 FINISHING IT OFF Zero Term: 16 -4 16 -4 n + 16 n +

Practice 4, 9, 14, 19, 24 5n + -1 or 5n - 1 -8, -5, -2, 1, 4 3n + -11 or 3n – 11 7, 1, -5, -11, -17 -6n + 13 -15, -11, -7, -3, 1 4n + -19 or 4n – 19

4, 9, 14, 19, 24

5n + -1 or 5n - 1

-8, -5, -2, 1, 4

3n + -11 or 3n – 11

7, 1, -5, -11, -17

-6n + 13

-15, -11, -7, -3, 1

4n + -19 or 4n – 19

Add a comment

Related presentations

Related pages

Sequences and series - Maths is Fun - Math is Fun

Infinite or Finite. When the sequence goes on forever it is called an infinite sequence, otherwise it is a finite sequence
Read more

Algebraic sequences by - UK Teaching Resources - TES

Interactive excel worksheet that lets students practive their skills at identifying and describing simple linear and quadratic sequences. Suitable for K...
Read more

Algebraic Shift Register Sequences eBook gratis | weltbild.de

Kostenloses eBook: Algebraic Shift Register Sequences als Gratis-eBook Download bei Weltbild. Jetzt kostenloses eBook sichern und in unserem Sortiment ...
Read more

Kristin IB Math - Algebra

Algebraic Sequences. Sequences A sequence is a set of numbers in a definite order, so that each number can be obtained from the previous using the same ...
Read more

Algebraic Sequences by - UK Teaching Resources - TES

Three sets of KS3 Maths sticky labels: Sequences continue an odd or even sequence or find the missing numbers From a 2 to a 3. Sequences continue one From ...
Read more

Algebraic Shift Register Sequences: Amazon.de: Mark ...

Mark Goresky - Algebraic Shift Register Sequences jetzt kaufen. ISBN: 9781139057448, Fremdsprachige Bücher - Algebra
Read more

Algebraic sequences - The melo Nano tree by Laura Ferri on ...

Description of Tree • Starting from one trunk, the trunk will grow and then will divide into two smaller, separate branches, thus creating three branches ...
Read more

Spectral sequence - Wikipedia, the free encyclopedia

In homological algebra and algebraic topology, a spectral sequence is a means of computing homology groups by taking successive approximations. Spectral ...
Read more

Sequences - Finding A Rule - Maths Resources

Sequences - Finding a Rule. To find a missing number in a Sequence, first we must have a Rule. Quick Definition of Sequence. Read Sequences and Series for ...
Read more