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General Maths Units 1 and 2

Geometric sequences

Sequences and finance

19:46 Lesson length
14 Chapters
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About this lesson
This video continues the series relating to Sequences and looks at Geometric Sequences. I look at what a geometric sequence is and how we can tell it apart from an arithmetic sequence. I look at how we find the common ratio and how we cannot divide to get from term to term. I look at how we can identify a geometric sequence by checking at least two of the common ratios to make sure they are the same. There are lots of worked examples and the theory is explained in an easy to understand and humourous way.
Lesson chapters
  1. Introduction
  2. Welcome
  3. Learning Objectives
  4. Recap of past learning
  5. What is a geometric sequence?
  6. We never divide
  7. Finding the common ratio
  8. Example: Finding the common ratio
  9. Example: Identifying a geometric sequence
  10. Using the CAS to find the terms of a geometric sequence
  11. What does the graph of a geometric sequence look like?
  12. Example: Graphing a geometric sequence
  13. Example 2: Graphing a geometric sequence
  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 sequences
  • Section Sequences and finance
  • Course General Maths Units 1 and 2

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