Quiz about Kuis Matematika

Question 1

Manakah bentuk berikut yang merupakan fungsi linear dan fungsi kuadrat

Accepted Answer

$$x^2$$

Accepted Answer

x-1

Answer

$$x^3+1$$

Answer

$$x^{4\ }-1$$

Question 2

akar-akar persamaan kuadrat $$x^2-x\ -6$$ adalah...

Accepted Answer

3 dan -2

Answer

3 dan 2

Answer

-3 dan 2

Answer

-3 dan -2

Question 3

diketahui $$f\left(x\right)=x+2,\ g\left(x\right)=x-3$$ , tentukanlah nilai $$fog\left(2\right)$$

Accepted Answer

1

Answer

-1

Answer

-2

Answer

2

Question 4

diketahui $$f\left(x\right)=-x+2x+1,\ g\left(x\right)=2x+1$$ ,tentukan lah nilai $$gof\left(3\right)$$

Accepted Answer

8

Answer

2

Answer

4

Answer

6

Question 5

diketahui $$f\left(x\right)=x^2\ +2x\ -6$$ , $$g\left(x\right)=x-2$$ , tentukanlah $$fog\left(x\right)$$ dan $$fog\left(2\right)$$

Accepted Answer

$$x^2-2x-4\ dan\ -4$$

Answer

$$x^2-2x+4\ dan\ 4$$

Answer

$$x^2+2x+4\ dan\ -4$$

Answer

$$x^2+2x-4\ dan\ 4$$

Question 6

diketahui $$f\left(x\right)=x^2-4x+4$$ , tentukanlah nilai $$f^{-1}\left(x\right)$$

Accepted Answer

$$\sqrt[]{x}+2$$

Answer

$$\sqrt[]{x}-2$$

Answer

$$\sqrt[]{-x}+2$$

Answer

$$\sqrt[]{-x}-2$$

Question 7

diketahui $$f\left(x\right)=x^2+2x+1$$ , $$g\left(x\right)=x+2$$ ,Tentukan nilai $$fog^{-1}\left(x\right)\ dan\ fog^{-1}\left(4\right)$$

Accepted Answer

$$x^2+6x+9\ dan\ 5$$

Answer

$$x^2+4x+12\ dan\ 6$$

Answer

$$x^2+9x+6\ dan\ 5$$

Answer

$$x^2+6x+9\ dan\ 6$$

Question 8

diketahui $$f\left(x\right)\ =\ x\ $$ , $$g\left(x\right)\ =\ x^2+10x\ +25$$ ,tentukanlah nilai $$f^{-1}og^{-1}\left(x\right)\ dan\ f^{-1}og^{-1}\left(4\right)$$

Accepted Answer

$$\sqrt[]{x}-5\ dan\ -3$$

Answer

$$\sqrt[]{x}+5\ dan\ -2$$

Answer

$$\sqrt[]{x}-5\ dan\ \ 3$$

Answer

$$\sqrt[]{x\ }\ +5\ dan\ 2$$

Question 9

jika $$f\left(x\right)\ =\ x+4$$ , $$g\left(x\right)\ =\ x^2$$ , $$h\left(x\right)\ =\ 4x$$ , maka tentukanlah nilai $$fogoh\ \left(x\right),\ fogoh\ \left(4\right),\ dan\ fogoh^{-1}\left(4\right)$$

Accepted Answer

$$16x^2+4,\ 256,\ -\frac{1}{2}$$

Answer

$$16x^2+4,\ 276,\ \frac{1}{2}$$

Answer

$$16x^2+4,\ 256,\ \frac{1}{2}$$

Answer

$$16x^2+4,\ 276,\ -\frac{1}{2}$$

Question 10

soal penerapan fungsi dalam kehidupan

Accepted Answer

2

Answer

s1

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