Chapter 1: Functions

Chapter 1: Functions

1. Function

   • Graphical Representation
   • Notation
     • g : x → x+1 or g(x) = x+1
   • How to determine whether it is a function or not?
     • Relation
       • One-to-one
       • Many-to-one
     • Vertical line test (1 intersection point)
   • Domain= {1,2,3,4} Codomain={3,5,7,9,11} Range={3,5,7,9}
     • Example 6 & 7 page 9
       • Paper 1: 1(a) & (b)

2. Composite Functions

3. Inverse Functions

   • How to determine whether a function has an inverse function or not?
     • Relation
       • One-to-one
     • Horizontal line test
   • How to proof it is the inverse function of the function?
     • Use composite function example 16 page 25

Images and files in the map