1 Functions

Instructor

1.1 Understand the terms: function, domain, range (image set), one–one function, many–one function, inverse function and composition of functions

1.2 Find the domain and range of functions

1.3 Recognise and use function notation

1.4 Understand the relationship between y = f(x) and y = |f(x)|, where f(x) may be linear, quadratic, cubic or trigonometric

1.5 Explain in words why a given function does not have an inverse

1.6 Find the inverse of a one–one function

1.7 Form and use composite functions

1.8 Use sketch graphs to show the relationship between a function and its inverse