Combination of functions

You will be asked to combine functions. In this tutorial you are shown what we mean by combining functions and introduced to a simple example and the notation that you may expect to see.

Examples in the video

If f(x) = 2x – 3, g(x) = 3 / x where x ≠ 0 and h(x) = x2

Find:

  1. fg(x)
  2. gfh(x)
  3. fff(x)

 

Example 2

Examples in the video

If f(x) = e2x + 1, g(x) = 2x – 4 and h(x) = ln x

Find:

  1. fg(x)
  2. hf(x)
  3. fh(x)

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