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Cambridge IGCSE Mathematics

1.17Exponential growth and decay

Exponential growth and decay in Cambridge IGCSE Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic20 practice questions1 lesson

Learning objectives

What the syllabus expects you to be able to do.

  1. 1.17.1Extended: use exponential growth and decay, such as depreciation and population change, by applying a repeated multiplier.

Lessons

  • Exponential growth and decay

    30 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Exponential growth and decay: sample question

1 mark

A car costs US$22,000. Its value depreciates by 14% each year. Calculate its value after 1 year.

Complete: US$ …

Only if the answer has a unit, e.g. cm or km/h.

Turn Exponential growth and decay into a strength.

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