Remember:

  • |f(x)| reflects any part of the original f(x) graph that was below the x-axis in the x-axis.

In this video I show you how to draw graphs of the form y=|f(x)| using the modulus function and give you three graphs to try.

Examples in the video: Sketch the following

  1. y = |x + 2|
  2. y = |(x – 2)(x + 1)|
  3. y = |ln (x)|
How to draw y=|f(x)| graphs : ExamSolutions Maths Revision - youtube Video