Geometric sequences: recursion, nth-term rules and exponential growth and decay

What this note covers

1. What makes a sequence geometric
2. Generating the sequence by recursion
3. Deducing the rule for the nth term
4. Tables, graphs and the shape of geometric change
5. Modelling practical growth and decay
6. Calculator-free technique
7. How geometric sequences are examined and what separates a top answer

7 sections · 12 key terms & formulas · 6 common mistakes