T-QAD Day 10 @ 26 April 2020

 Notes Topic: Functions

Subtopic: Relations


Module: FUNCTIONS click here to download.

Upload the module above. If you have printer, you can print it for your exercise. If not, just copy the question in your note book.
This week we will revise this chapter.

1. The relation between two sets can be represented by:

2. In relation between set (A) and set (B) :

Set (A) is known as domain. List of domain  { -2, 3, 4}

Set (B) is codomain. List of codomain {-4, 6, 8, 9}

 -2, 3, 4 are list of objects

 -4, 6, 8 are list of image

9 is non image because no object link to it.

All images are called RANGE.

3. Types of relations

Need further explanation? Please watch this video.

Video 1 

Example:

T-QAD for TODAY


Question 1 : Q1/D10/260420

The arrow diagram below shows the relation between set P and set Q. 

State

a) the codomain

b) the range

of the relation

                                                                                                         (2 marks)

Question 2 : Q2/D10/260420

The Cartesian graph below represents a relation from set P to set Q.

State

a) the objects of 9,

b) the type of the above relation.

                                                                                                         (2 marks)

                                                                                                      

Answers T-QAD 23 April 2020

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