Quiz about Ulangan Harian Komposisi Fungsi

Question 1

Diketahui A = {1, 2, 3} dan B = {-3, -2, -1, 0, 1, 2, 3}. Jika fungsi f : A $$\longrightarrow$$ B ditentukan dengan f(x) = 6 - 3x maka range nya adalah...

Accepted Answer

-3 , 0 , 3

Answer

1 , 2 , 3

Answer

-3 , 1 , 3

Answer

-2 , -1 , 0

Answer

0 , 1 , 3

Question 2

Diketahui $$f\left(x\right)=\frac{5x-1}{8}$$ Nilai x untuk f(x) = 3 adalah...

Accepted Answer

5

Answer

-5

Answer

-3

Answer

2

Answer

4

Question 3

Suatu fungsi f(x) = 3x²+ 1 dengan bayangan dari 3 adalah...

Accepted Answer

28

Answer

1

Answer

7

Answer

14

Answer

35

Question 4

Diketahui fungsi f(x) = 10x - 2. Jika f(a) = 8 maka nilai a adalah...

Accepted Answer

1

Answer

2

Answer

3

Answer

4

Answer

5

Question 5

Diketahui fungsi f(x) = 2x + 1 dan g(x) = 3x - 2. Maka fungsi dari (3f - 2g) (x) = ...

Accepted Answer

7

Answer

5

Answer

6

Answer

8

Question 6

Hasil perkalian dari fungsi f(x) = 2x + 1 dengan g(x) = x - 5 adalah...

Accepted Answer

2x²- 9x - 5

Answer

2x²+ 9x - 5

Answer

2x²- 11x - 5

Answer

2x²+ 11x - 5

Question 7

Diketahui f(x) = x²- 1 dan g(x) = x + 1. Nilai dari
$$\left(\frac{f}{g}\right)\left(0\right)=...$$

Accepted Answer

-1

Answer

-2

Answer

0

Answer

1

Answer

2

Question 8

Diketahui fungsi f(x) = 2x - 3 dan g(x) = x²+ 2x -3. Komposisi fungsi (gof) (x) adalah...

Accepted Answer

4x2 - 8x

Answer

4x2 + 8x

Answer

2x² - 4x -9

Answer

2x² + 4x - 3

Question 9

Diketahui f(x) = 2x + 5 dan g(x) = $$\frac{x+4}{x-1}$$ maka (fog) (2) = ...

Accepted Answer

17

Answer

2

Answer

9

Answer

25

Question 10

Jika f(x) = x - 2 ; g(x) = 2x dan h(x) = 2x + 4, maka nilai dari (fogoh) (-3) adalah...

Accepted Answer

-6

Answer

8

Answer

14

Answer

-16

Answer

-10

Question 11

Jika (gof) (x) = 2x²+ 4x +5 dan g(x) = 2x + 3 maka f(x) = ...

Accepted Answer

x²+ 2x + 1

Answer

x²+ 2x + 2

Answer

2x²+ x + 2

Answer

2x²+ 4x + 1

Question 12

Jika (fog) (x) = 2x + 4 dan g(x) = x + 1 maka f(x) = ...

Accepted Answer

2x + 2

Answer

2x + 1

Answer

x + 2

Answer

x - 1

Answer

2x + 4

Question 13

Diketahui f(x) = 2x - 1 dan (gof) (x) = 6x + 3 maka nilai dari g(3) = ...

Accepted Answer

15

Answer

0

Answer

3

Answer

5

Answer

10

Question 14

f(x) = x + 2
(gof) (x) = 2x² + 4x + 1
g(x) = ...

Accepted Answer

2x² - 4x + 1

Answer

2x² + 4x + 1

Answer

2x² + 4x + 2

Answer

2x² - 12x + 1

Question 15

Jika diketahui $$f\left(x\right)=\frac{2-3x}{4x+1}$$ maka nilai dari $$f^{-1}\left(0\right)=...$$

Accepted Answer

$$\frac{2}{3}$$

Answer

$$\frac{1}{7}$$

Answer

$$\frac{2}{7}$$

Answer

$$\frac{1}{3}$$

Question 16

Invers dari 3x - 2 adalah...

Accepted Answer

$$\frac{x+2}{3}$$

Answer

$$\frac{x+1}{2}$$

Answer

$$\frac{x-2}{3}$$

Answer

$$\frac{x-2}{3}$$

Question 17

f(x) = 2x - 1

g(x) = 3x + 2

(f^-1o g) (x) = ...

Accepted Answer

$$\frac{3x+3}{2}$$

Answer

$$\frac{x+3}{2}$$

Answer

$$\frac{x+1}{2}$$

Answer

$$\frac{3x+2}{2}$$

Question 18

f(x) = 2x - 1

g(x) = 3x + 2

$$\left(\frac{f}{g}\right)^{-1}\left(x\right)=...$$

Accepted Answer

$$\frac{-2x-1}{3x-2}$$

Answer

$$\frac{2x-1}{3x-2}$$

Answer

$$\frac{-2x-1}{3x+2}$$

Answer

$$\frac{2x-1}{3x+2}$$

Question 19

Jika diketahui f(x) = 2x - 1 dan g(x) = 3x + 2 maka invers dari (fog) (x) adalah...

Accepted Answer

$$\frac{x-3}{6}$$

Answer

$$\frac{x+1}{6}$$

Answer

6x - 1

Answer

6x + 3

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