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Learning objective

Understand and apply the concepts of exponential growth and decay, such as in scenarios involving depreciation or changes in population. Knowledge of the constant e is not necessary.

Read the explanation, check the common trap, then practise with flashcards and questions.

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE MathematicsExtended NumberSupplement content

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Quick explanation

Understand and apply the concepts of exponential growth and decay, such as in scenarios involving depreciation or changes in population. Knowledge of the constant e is not necessary

  • This point belongs to Exponential growth and decay, especially Exponential growth and decay outcomes.
  • You need to be able to understand and apply the concepts of exponential growth and decay, such as in scenarios involving depreciation or changes in population. Knowledge of the constant e is not necessary.
  • The key ideas to know are Calculate, Determine, and Explain.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

CalculateDetermineExplain

Why it matters

This objective helps connect Exponential growth and decay outcomes to exam-style questions, flashcards, and revision notes for Exponential growth and decay.

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Flashcards10 linked cards

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Practice Questions7 linked questions

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Paper 2 structured question: Exponential growth and decay

Paper 2Core or Extended Mathematics3 marks

Description

Car Depreciation

A car is bought for $20,000. It depreciates by 15% each year.

  1. a

    Calculate the value of the car after 2 years.

    Aim for approximately 3 distinct marking points.

    [3]
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