Quiz about GRAFIK FUNGSI KUADRAT

Question 1

Sumbu simetri dari gambar grafik tersebut adalah .....

Accepted Answer

-1

Answer

-2

Answer

4

Answer

5

Question 2

Sumbu simetri yang sesuai fungsi kuadrat $$f\left(x\right)=3x^2+2$$

Accepted Answer

$$x=0$$

Answer

$$x=3$$

Answer

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

Answer

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

Question 3

Nilai optimum untuk fungsi $$f\left(x\right)=-2x^2-12x-17$$

Accepted Answer

$$y=1$$

Answer

$$y=-1$$

Answer

$$y=3$$

Answer

$$y=-3$$

Question 4

Titik puncak grafik $$f\left(x\right)=3x^2-7$$

Accepted Answer

$$\left(0,-7\right)$$

Answer

$$\left(0,0\right)$$

Answer

$$\left(\frac{7}{6},-\frac{35}{12}\right)$$

Answer

(2,3)

Question 5

Fungsi kuadrat yang memotong sumbu x di titik (-1,0) dan (3,0) serta melalui titik (2, -3) adalah ... $$y=-x^2+2x-3$$

Accepted Answer

$$y=x^2-2x-3$$

Answer

$$y=x^2+2x-3$$

Answer

$$y=x^2+2x+3$$

Answer

$$y=-x^2+2x-3$$

Question 6

Fungsi kuadrat yang melalui (2,-3) dan memiliki titik puncak (1,-4) adalah .....

Accepted Answer

$$y=x^2-2x-3$$

Answer

$$y=x^2+2x+3$$

Answer

$$y=-x^2+2x-3$$

Answer

$$y=-x^2-4x+6$$

Question 7

Fungsi kuadrat yang melalui titik (0,-2) , (-1,-2), dan (-2,0) adalah .....

Accepted Answer

$$y=x^2+x-2$$

Answer

$$y=2x^2+x-2$$

Answer

$$y=x^2+2x-2$$

Answer

$$y=-x^2+x+2$$

Question 8

Jika fungsi kuadrat $$y=px^2+6x+p$$ mempunyai sumbu simetri x = 3, maka nilai maksimum fungsi tersebut adalah .....

Accepted Answer

8

Answer

9

Answer

5

Answer

3

Question 9

Grafik fungsi kuadrat $$y=ax^2+6x+\left(a+4\right)$$ melalui titik (0,5). Nilai minimumnya adalah .....

Accepted Answer

$$-4$$

Answer

$$4$$

Answer

$$\frac{1}{4}$$

Answer

$$-\frac{1}{4}$$

Question 10

Jika nilai diskriminannya dinyatakan oleh D, maka pernyataan yang benar adalah......

Accepted Answer

$$a<0\ ;\ c<0\ ;\ D<0$$

Answer

$$a>0\ ;\ c>0\ ;\ D>0$$

Answer

$$a>0\ ;\ c<0\ ;\ D>0$$

Answer

$$a<0\ ;\ c>0\ ;\ D<0$$

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