Quiz about Matematika

Question 1

Berikut yang bukan persamaan kuadrat adalah...

Accepted Answer

$$2x^3-2x\ +8=0$$

Answer

$$x^2+6x-16=0$$

Answer

$$2x^2-x-6=0$$

Answer

$$5x^2-25=0$$

Question 2

Bentuk umum persamaan kuadrat dari persamaan $$x^2+5x\ =-6$$ adalah...

Accepted Answer

$$x^2+5x\ +6\ =\ 0$$

Answer

$$x^2+5x\ -6\ =0$$

Answer

$$x^2-5x+6\ =\ 0$$

Answer

$$x^2-5x-6\ =\ 0$$

Question 3

Nilai a dari persamaan $$x^2+9x+9=0\ $$ adalah

Accepted Answer

1

Answer

3

Answer

2

Answer

0

Question 4

Nilai b dari persamaan kuadrat $$2x^2+6=0$$

Accepted Answer

0

Answer

1

Answer

2

Answer

6

Question 5

Akar-akar persamaan kuadrat $$x^2-2x-48=0$$ adalah...

Accepted Answer

-6 dan 8

Answer

6 dan 8

Answer

6 dan -8

Answer

-8 dan -6

Question 6

Sumbu simetris dari fungsi grafik $$x^2+4x+2$$ adalah...

Accepted Answer

-2

Answer

2

Answer

-4

Answer

4

Question 7

Jika diketahui sumbu simetris -3 dan nilai ekstream 1 maka titik puncaknya adalah...

Accepted Answer

(-3, 1)

Answer

(1, 3)

Answer

(1, -3)

Answer

(3, 1)

Question 8

Titik puncak dari grafik fungsi kuadrat tersebut adalah...

Accepted Answer

(1, -4)

Answer

(-4, 1)

Answer

(1, 4)

Answer

(4, -1)

Question 9

Tentukan fungsi kuadrat yang memotong sumbu x di titik (-1, 0) dan (3, 0) serta melalui titik (2, -3) adalah ...

Accepted Answer

$$f\left(x\right)=\ x^2-2x-3$$

Answer

$$f\left(x\right)=\ x^2+2x-3$$

Answer

$$f\left(x\right)=\ 2x^2-2x-3$$

Answer

$$f\left(x\right)=\ 2x^2+2x-3$$

Question 10

Jika fungsi kuadrat memiliki nilai a > 0 maka gambar grafik fungsi kuadrat tersbut terbuka keatas.

Accepted Answer

Benar

Answer

Salah

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