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Module 2 Lesson 1

High School

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Transcript

Module 2 - Lesson 1

In this module you will review patterns and sequences

Lesson 1 - Patterns and Sequences

Pattern - A set of numbers arranged in order (or in a sequence). The numbers and their arrangement are determined by a rule, including repetition and growth/decay rules.

Example: 2, 4, 6, 8...

Arithmetic Sequence - An ordered list of numbers that increases or decreases at a constant rate (i.e., the difference between numbers remains the same).

Example: 1, 7, 13, 19, … is an arithmetic sequence as it has a constant difference of +6 (i.e., 6 is added over and over)

Formula: an = a1 + (n-1)d

Geometric Sequence - An ordered list of numbers that has the same ratio between consecutive terms.

Example: 1, 7, 49, 343, … is a geometric sequence that has a ratio of 7/1 between consecutive terms; each term after the first term can be found by multiplying the previous term by a constant, in this case the number 7 or 7/1

Formula: an = a1 • r n-1

Lesson 1 - Patterns and Sequences

Lesson 1 - Patterns and Sequences

-1, 4, 9, 14,...

Keystone Resources

Here are resources to help support you through this module and prepare you for the Keystone exam.

Keystone Formula Sheet

Keystone Graphing Calculator

Keystone Four Function Calculator

Scoring Guidelines for Constructed Response

Algebra 1 Keystone Example Test

Keystone Resources

Here are resources to help support you through this module and prepare you for the Keystone exam.

Keystone Formula Sheet

Keystone Graphing Calculator

Keystone Four Function Calculator

Scoring Guidelines for Constructed Response

Algebra 1 Keystone Example Test

Keystone Resources

Here are resources to help support you through this module and prepare you for the Keystone exam.

Keystone Formula Sheet

Keystone Graphing Calculator

Keystone Four Function Calculator

Scoring Guidelines for Constructed Response

Algebra 1 Keystone Example Test

Keystone Resources

Here are resources to help support you through this module and prepare you for the Keystone exam.

Keystone Formula Sheet

Keystone Graphing Calculator

Keystone Four Function Calculator

Scoring Guidelines for Constructed Response

Algebra 1 Keystone Example Test