Quiz about Komposisi Fungsi

Question 1

Diketahui fungsi $$f\left(x\right)=x^2+x$$ dan $$g\left(x\right)=\frac{2}{x+3}$$ maka $$\left(f.g\right)\left(x\right)$$ adalah...

Accepted Answer

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

Answer

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

Answer

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

Answer

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

Answer

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

Question 2

Diketahui $$f\left(x\right)=2x-2,\ g\left(x\right)=\sqrt{4-x},$$ dan $$h\left(x\right)=4x-x^2$$ . Fungsi $$\left(f\ \circ\ g\ \circ\ h\right)\left(x\right)=$$ ...

Accepted Answer

$$2x-6$$

Answer

$$2x-4$$

Answer

$$2x-2$$

Answer

$$2x+2$$

Answer

$$2x+4$$

Question 3

Jika $$g\left(x\right)=\ x^2-7$$ dan $$\left(g\ \circ\ f\right)\left(x\right)=4x^2+16x+9,\ $$ fungsi $$f\left(x\right)$$ adalah ...

Accepted Answer

$$2x+4$$

Answer

$$-3x+7$$

Answer

$$-2x-2$$

Answer

$$2x+8$$

Answer

$$3x+11$$

Question 4

Jika $$g\left(x\right)=x^2-2x$$

dan $$\left(g\ \circ\ f\right)\left(x\right)=x^2-10x+24$$ fungsi $$f\left(x\right)$$ adalah ...

Accepted Answer

$$x-4$$

Answer

$$6-x$$

Answer

$$4-x$$

Answer

$$x-6$$

Answer

$$x+4$$

Question 5

$$Jika\ f\left(x+2\right)\ dan\ \left(g\circ f\right)\left(x\right)=x,\ maka\ g\left(x\right)=\ .\ .\ .$$

Accepted Answer

$$x-2$$

Answer

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

Answer

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

Answer

$$3x-2$$

Answer

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

Question 6

jika f(x) = 2x+1, tentukan f(x+1) ......

Accepted Answer

2x + 3

Answer

2x + 5

Answer

2x + 4

Answer

2x + 2

Answer

2x + 1

Question 7

Dik fungsi $$f\left(x\right)=3x-1$$ dan $$g\left(x\right)=2x^2+3$$ . Nilai dari komposisi fungsi $$\left(gof\right)\left(1\right)$$ adalah

Accepted Answer

11

Answer

7

Answer

9

Answer

13

Question 8

Jika fungsi f(x) = 3x-1 dan g(x)=2x²+2 maka (gof)(x) adalah...

Accepted Answer

18x²-12x+4

Answer

18x²+12x+4

Answer

18x²-12x-4

Answer

18x²+12x-4

Answer

18x²-4x+12

Question 9

Diketahui f(x) = x²-1 dan g(x) = x + 2, fungsi komposisi

(f o g) (x) adalah ....

Accepted Answer

x2+4x+3

Answer

x2+4x-3

Answer

x2-4x+3

Answer

x2-4x-3

Answer

-x2+4x-3

Question 10

Diketahui g(x) = 3x+4 dan f(x) = 2x, nilai (f o g) (1) adalah ....

Accepted Answer

14

Answer

11

Answer

12

Answer

13

Answer

15

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