Function Notation

Examples, videos, and solutions to help GCSE Maths students learn about the function notation.

Function Notation
How to use the function Notation?
A basic description of function notation and a few examples involving function notation.
Example:
If g(t) = t² - 2t + 1

1. g(3t)
   
2. 5g(-1)
   
3. solve g(t) = 1
   If f(x) = 5x -2, h(x) = x²
   
4. 3f(x)
   
5. f(2x - 1)
   
6. -f(a)
   
7. Solve f(-x) = h(x) + 2

Function Notation
The meaning and necessity of function notation, what it looks like, and how to use it.

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Function notation GCSE Further Maths revision
Exam paper practice and help

1. f(x) = 3x - 5 for all values of x.
   Solve f(x² = 43
   
2. A sketch of y = g(x) for domain 0 ≤ x ≤ 8 is shown.
   The graph is symmetrical about x = 4.
   The range of g(x) is 0 ≤ g(x) ≤ 12
   Work out the function g(x)

How to do function notation for GCSE Higher level Maths revision?

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