Logarithmic and exponential functions

Logarithmic and exponential functions

Understanding Exponential and Logarithmic Functions

  • Become proficient with the concept of exponential functions, understanding its base, exponent, and how changing each affects the function’s behaviour.
  • Identify and utilise the properties of exponential functions to simplify expressions and to solve equations.
  • Plot and interpret the graphs of exponential functions. Recognise the exponential growth and decay.

Logarithmic Functions

  • Comprehend the principles of logarithmic functions, focusing on the relationship between a logarithm, its base, and the number.
  • Apply the three main properties of logarithms, which include product, quotient, and power, to simplify logarithmic expressions.
  • Exploit the inverse relationship between exponential and logarithmic functions to transform equations.
  • Plot and interpret the graphs of logarithmic functions. Notice the behaviour of the graphs and the asymptotes.

Solving Exponential and Logarithmic Equations

  • Learn to solve exponential equations, both graphically and algebraically.
  • Develop skills to solve logarithmic equations, using techniques such as making the bases identical, changing the base, or using the one-to-one property of logarithm.
  • Understand the process to solve equations involving both exponential and logarithmic functions.

Real-World Applications

  • Apply your knowledge of exponential and logarithmic functions to solve real-world problems, such as those involving population growth, radioactive decay, and compounding interest.
  • Comprehend the concept of continuous compounding and its link with the natural logarithm, e.
  • Utilise the concept of the half-life of a substance in modelling its decay.