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General Mathematics: Units 1 and 2

Geometric sequence applications

Number patterns and recursion

17:39 Lesson length
14 Chapters
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About this lesson
This video is the next video in the series looking at sequences. It is important to understand the difference between a rule and a recurrence relationship. This video looks at how we can find the nth term of a geometric sequence and how we can use it to find an term in the list. Knowing how to relate a common ratio and percentage increase or decrease is a handy skill which is used a lot in General Maths Units 3 and 4. The video is explained in my usual manner ensuring that it is easy to follow with lots and lots of worked examples. There is also an example of how we can apply this learning in real life using geometric sequences.
Lesson chapters
  1. Introduction
  2. Welcome
  3. Learning Objectives
  4. Recap of past learning
  5. Finding the nth term of a geometric sequence
  6. Finding the nth term of a geometric sequence: The Formula
  7. Example: Finding the nth term of a geometric sequence
  8. Turning percentage change into a common ratio
  9. Example: Turning percentage change into a common ratio
  10. Example 2: Turining percentage change into a common ratio
  11. Rule for turning percentage change into a common ratio
  12. Example: Calculating the common ratio for a given percentage change
  13. Example: Application question
  14. Final words
Legal (VCAA)

VCE Maths exam question content used by permission, ©VCAA. The VCAA is not affiliated with, and does not endorse, this video resource. VCE® is a registered trademark of the VCAA. Past VCE exams and related content can be accessed at www.vcaa.vic.edu.au

Video details
  • Title Geometric sequence applications
  • Section Number patterns and recursion
  • Course General Mathematics: Units 1 and 2

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