Exponential And Logarithmic Functions
Overview
Exponential and logarithmic functions sit at the heart of Further Pure Mathematics, connecting algebra, calculus and real-world modelling. Whether you are describing population growth, radioactive decay or compound interest, these two families of functions provide the tools you need.
In this topic you will learn to recognise the shape and behaviour of exponential curves and their inverses, apply the laws of logarithms to simplify and solve equations, and move fluently between exponential and logarithmic forms. Every technique is practised through graded worked examples that mirror the style Edexcel examiners reward.
Objectives
- Know the functions a^x and log_b(x) where b is a natural number greater than one, including the shape of their graphs
Mind map
This topic is mapped out so you can see how the ideas connect.
Open the mind map in the app
Flashcards
Quick recall practice on the facts this topic is tested on.
Practise these cards in the app
Lesson Note
Complete Note Available on the Green Bridge App
Get the Green Bridge CBT app on your phone or computer for the complete IGCSE library: past papers, mark schemes, mind maps, flashcards and audio lessons.
Lesson Evaluation
Congratulations on completing the lesson on Exponential And Logarithmic Functions. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- What is the value of log_2(32)? A) 4 B) 5 C) 6 D) 8 Answer: B
- The graph of y = 3^x passes through which of these points? A) (0, 0) B) (0, 1) C) (1, 0) D) (0, 3) Answer: B
- Which expression is equivalent to log(a) + log(b)? A) log(a + b) B) log(ab) C) log(a) x log(b) D) log(a^b) Answer: B
- What is the vertical asymptote of the graph y = log_5(x)? A) y = 0 B) x = 1 C) x = 0 D) y = 1 Answer: C
- If 4^x = 64, what is the value of x? A) 2 B) 3 C) 4 D) 16 Answer: B
Work through these questions in the app
Work through these questions in the app
Practice Mock Questions
Want to practice mock questions on Exponential And Logarithmic Functions? Download the Green Bridge CBT app to access mock questions and full practice assessments for this topic.
Download The App On Google Playstore
Everything you need to excel in your exams
