Free taster
5 of 6 sections open
What Is Exponential Change?
What Is Exponential Change?
Imagine bacteria doubling every hour: 1→2→4→8→16→32... After 10 hours: over 1000! This explosive increase is exponential GROWTH. Radioactive decay works the opposite way - half disappears each time period. These patterns appear in population growth, compound interest, and depreciation.
Now try it yourself
Quiz · Question 1 of 12
Which formula correctly calculates the amount A after compound interest at rate r% per year for n years on principal P?
Tap an answer to check it
This topic in real past papers
Every real exam question we've found on compound interest, with a full worked answer.
AQA Paper 3
Two of the four sittings we have full papers for present two different growth offers side by side and ask which one is actually worth more, or whether a claim about them is true.
Edexcel Paper 2
Two of the three sittings we have full papers for apply a percentage change repeatedly over several years, and June 2023 asks for two separate compound calculations to be compared.