- |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
- y = |x + 2|
- y = |(x – 2)(x + 1)|
- y = |ln (x)|