Acknowledgement

What I have learn from this assignment. I learn to create blog and familiarize with its features : post, edit. customize the background, edit profile, edit font and size and etc. This is my first time doing blog. I create this blog learning from Youtube and also learning from My Friends and My Lecturer.

A big thank to Miss Nadhirah, from My Friends who have been helping me to complete my assignments. With Allah guides and permission as well as helping hands and taughts from my friend, I am able to complete the blog before the  dateline

Stem and Leaf Diagrams

linear Inequalities

Introduction to Logarithms

Representation of data

Example:-

1. 21, 22, 26, 27, 18, 5, 7, 8, 35, 31, 61, 70, 44, 41, 52, 56, 57, 56, 57, 56, 58

Draw a stem and leaf diagram foe the above data

a) find the median

b) the mode

0  5 7 8

1  6 8

2  1 2 6 7

3   1 5

4  1 4

5  2 6 6 7 8

6  1                  key : 1/6

7  0                  Represent : 16

a) median

= 32 + 35 / 2

= 66/2

= 33

b) mode

= 56

2. Draw a stem and leaf diagram to represent the data below:-

23, 6, 36, 24, 21, 15, 13, 15, 3, 21, 33, 9, 17, 15, 24, 21, 35, 14, 6, 18

0  3 6 6 9

1  3 4 5 5 5

2  1 1 1 3 4 4            key: 2/1

3  3 5 6                     Represent: 21

Rules of Indices

Linear inequalities

Linear Inequalities

< Less than

> More than

≤ Less than or Equal to

≥ More than or Equal to

Open circle > < 

Close circle ≥ ≤

Example:-

1. Solve the following inequalities

a) x – 5 ≥ 2 (x + 6)

= x – 5 ≥ 2 x + 12

= x – 2x ≥ 12 + 5

= -x ≥ 17

= x ≤ 17

b) –x + 2 < 6 (x – 3)

= -x + 2< 6x – 18

= -x – 6x < -18 – 2

= -7x < -20

= x > -20/-7

= x > 2.8

2. -14 ≤ 2x

= x -14 ≤ 2

= x ≤ 2 + 14

= x ≤ 16

3. 3x – 1 ≤ 14

= 3x ≤ 14 -1

= 3x ≤ 15

= x ≤ 15/3

= x ≤ 5