wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Fungsi Invers

Total questions: 6

Worksheet time: 3mins

Name
Class
Date
1.

Fungsi f dinyatakan oleh f(x) = 3x-5. Jika f1f^{-1}  invers fungsi f, invers f(x) adalah ...

a)

x35\frac{x-3}{5}  

b)

x+35\frac{x+3}{5}  

c)

x53\frac{x-5}{3}  

d)

x+53\frac{x+5}{3}  

2.

Invers dari f(x)=23xx+5; x5f\left(x\right)=\frac{2-3x}{x+5};\ x\ne-5 adalah ....

a)

f1(x)=5x2x+3; x3f^{-1}\left(x\right)=\frac{5x-2}{x+3};\ x\ne-3  

b)

f1(x)=25xx+3; x3f^{-1}\left(x\right)=\frac{2-5x}{x+3};\ x\ne-3  

c)

f1(x)=5x2x3; x3f^{-1}\left(x\right)=\frac{5x-2}{x-3};\ x\ne3  

d)

f1(x)=25xx3; x3f^{-1}\left(x\right)=\frac{2-5x}{x-3};\ x\ne3  

e)

f1(x)=5x+2x+3; x3f^{-1}\left(x\right)=\frac{5x+2}{x+3};\ x\ne-3  

3.

Jika f(x) = x  3 dan g (x) = 3 – 2x, maka  (f  g)1=\left(f\ \circ\ g\right)^{-1}=   adalah 

a)

2x2x  

b)

312x3-\frac{1}{2}x  

c)

12x-\frac{1}{2}x  

d)

2x-2x  

e)

12x3\frac{1}{2}x-3  

4.

Fungsi F(x)= 3x696x\frac{3x-6}{9-6x}  berapakah  f1(3)=....f^{-1}\left(-3\right)=....  

a)

75\frac{7}{5}  

b)

43\frac{4}{3}  

c)

34-\frac{3}{4}  

d)

0

e)

59-\frac{5}{9}  

5.

Fungsi F(x)= x24x+10x^2-4x+10  Berapakah Nilai  f1(10)=.....f^{-1}\left(10\right)=.....  

a)

1

b)

2

c)

3

d)

4

e)

5

6.

Jika diketahui f(x ) =4x25,f\left(x\ \right)\ =4x^2-5,  maka  f1(x) adalah...f^{-1}\left(x\right)\ adalah...  

a)

4x +5\sqrt{4x\ }+5  

b)

x+5\sqrt{x+5}  

c)

x4+5\sqrt{\frac{x}{4}}+5  

d)

x+54\sqrt{\frac{x+5}{4}}  

e)

X54\sqrt{\frac{X-5}{4}}