ULANGKAJI FUNGSI (ADDMATHS F4)

ULANGKAJI FUNGSI (ADDMATHS F4)

(Pn Rabaiah)

Multiple Choice

Diberi f(x)=4x-3 , cari nilai x jika

f(x) = 17.

• 5

• 4

Diberi f(x)=2x-1 , Cari nilai bagi x

     jika f(x) = 5.

    Answer :       f (x) = 2 x – 1

                          2 x – 1  = 5

                          2 x        = 6

                         x        = 3 

Diberi g(x)=x+2, cari nilai y

    jika g(y) = 2y - 3

    Answer :     g(x)  =  x + 2

                        g(y) =  y + 2

                      y + 2  = 2 y – 3

                      3 + 2  = 2 y - y        

                      y    = 5

Cuba jawab soalan berikut===>>>>

Multiple Choice

Diberi g(x)=3x-2, cari nilai y jika

g(y) = 2y + 4.

• 6

• 5

Diberi f(x)=7x-3 dan g(x)=4x+15

    Cari nilai p jika f(p) = g(p).

 

 Answer :    f(x) = 7x – 3, g(x) = 4x + 15

                   f(p) = 7p – 3, g(p) = 4p + 15

                   f(p)    =    g(p)       

                  7p – 3 = 4p + 15 

                   3p      =   18  

                     p      =    6. 

Multiple Choice

Diberi f(x)=2x-10, g(x)=4x+2 ,

cari nilai x jika f(x) = g(x).

• 6

• -6

Diberi f(x)=3x-4 dan g(x)=2x , Cari fg(x).
Answer :    f(x)= 3x- 4 , g(x)= 2x                                            
                  fg(x) = f [ g(x) ]      
                            = f ( 2x)
                            = 3 (2x) - 4 
                            = 6x – 4

Cuba soalan berikut====>>>>>

Multiple Choice

Diberi f(x)=3-2x dan g(x)=x², cari fungsi gf(x)

• 3-2x

• (3-2x)²

Multiple Choice

 $Diberi\ f\left(x\right)=3x-2,\ cari\ f^{-1}\left(x\right)$  

•  $\frac{x+2}{3}$  

•  $\frac{x-2}{3}$  

Multiple Choice

 $Diberif(x)=3-2x\ dan\ g\left(x\right)=\frac{x}{5}+1\ cari\ f^{-1}g\left(x\right)$ 

•  $\frac{x-15}{10}$  

•  $\frac{x+15}{10}$  

Multiple Choice

 $Diberi\ f\left(x\right)=3x-2\ dan\ g\left(x\right)=\frac{x}{5}+1,\ cari\ h\left(x\right)\ jika\ hg\left(x\right)=2x+6$  

• 10x-4

• 10x+4