Add math form 4 chapter 1 ^_^

ASSALAMUALAIKUM wbt . BISMILLAHIRRAHMANIRRAHIM .

Disini saya nak kongsi sedikit ilmu pasal add math form 4 chapter 1 . Saya minat sangat chapter form 4 yang ni . :') 

This Subtopic form 4 chapter 1 :

1.1 RELATIONS
1.2 FUNCTION
1.3 COMPOSITE FUNCTION
1.4 INVERSE FUNTION

* REFLATIONS *

• A relation can be represented by an arrow diagram as shown above.

• P=domain/object={a,b}

• Q=codomain/image={1,2,3}

• range={1,3} (in other word we ca say that "range" is the codomain(Q) that have linked to domain(P).)

• each element in the range is an image of an object

Ia boleh dibahagikan kepada 4 categori : 

*ONE to ONE 

*ONE to MANY 

*MANY to ONE 

*MANY to MANY 

*FUNCTION*

Function, f(x)refer to an equation that shows the object and image.

example:

The diagram below shows the function f(x)=y. the function f  maps x to y.

domain= {-1,0,2}

codomain={1,3,4}

range={1,4}

by refering to the diagram, function f   is defined by f(x)= x²

since   f(x)= x²,
we can found that---->  f(2)= 2²=4

*COMPOSITE FUNCTION*

Two or more function can be combined to give a composite function.

 example:

the function f  and g  are defined by f(x)=2x-3 and g(x)=x²+1 respectively.

find the composite function of fg.

fg(x)=2[g(x)]-3

        =2(x²+1)-3

        =2x²-1  

*INVERSE FUNCTION*

 If a function f  maps x to y, then its inverse function  ƒ−1 

is the function that maps y back to x. Diagram below shows the inverse function of f(x).

Ni hanya video . cara-ii nak buat jalan kerja :')

Sekian ini shaja perkongsian saya . :') Assalamualaikum .