Quiz about Matematika G9 Nicolas Midtest

Question 1

Titik puncak dari kurva tersebut adalah ... .

Accepted Answer

(1,-1)

Answer

(-1,-5)

Answer

(2,-2)

Answer

(0,-2)

Question 2

Persamaan sumbu simetri dari kurva tersebut adalah ....

Accepted Answer

x = 1

Answer

x = 3

Answer

x = 0

Answer

x = -1

Question 3

Sketsa grafik fungsi kuadrat f(x)= 2x²+ 5x - 3, adalah ... .

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 4

Titik puncak grafik fungsi kuadrat f(x) = x² - 4x - 5 adalah

Accepted Answer

( 2, -9 )

Answer

( -2, -9)

Answer

( -2 , 9)

Answer

(2, 9 )

Question 5

Grafik fungsi kuadrat f(x) = x² -2 ditunjukkan oleh grafik berwarna .........

Accepted Answer

Merah

Answer

Hitam

Answer

Kuning

Answer

Hijau

Question 6

Grafik dari Fungsi kuadrat x² adalah...

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 7

Diketahui fungsi kuadrat y = 3x² -7x

Nilai a, b, dan c berturut-turut adalah....

Accepted Answer

a = 3, b = -7, c = 0

Answer

a = 3, b = 7, c = 0

Answer

a = -3, b = -7, c = 0

Answer

a = -3, b = 7, c = 0

Question 8

Diketahui fungsi kuadrat y = 3x² -7x

Persamaan sumbu simetrinya adalah...

Accepted Answer

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

Answer

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

Answer

x = - 1 $$\frac{1}{6}$$

Answer

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

Question 9

Diketahui fungsi kuadrat y = 7x² - 3x + 2

Persamaan sumbu simetrinya adalah...

Accepted Answer

x = $$\frac{3}{14}$$

Answer

x = - $$\frac{3}{7}$$

Answer

x = - $$\frac{3}{14}$$

Answer

x = $$\frac{3}{7}$$

Question 10

Diketahui fungsi kuadrat y = 7x² - 3x + 2

Titik potong dengan sumbu y adalah....

Accepted Answer

(0,2)

Answer

(0,-2)

Answer

(-2,0)

Answer

(2,0)

Question 11

Grafik fungsi y = -9x²+ 12x + 6 memotong sumbu y di titik ....

Accepted Answer

(0,6)

Answer

(0,-6)

Answer

(6,0)

Answer

(-6,0)

Question 12

Grafik fungsi y = -9x²+ 12x + 6 memotong sumbu y di titik ....

Accepted Answer

(0,6)

Answer

(0,-6)

Answer

(6,0)

Answer

(-6,0)

Question 13

Kurva dari fungsi kuadrat $$f\left(x\right)\ =\ -\ x^2\ +\ 2x\ -\ 1\ adalah\ ....$$

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 14

Persamaan berikut ini yang termasuk persamaan kuadrat adalah ..........

Accepted Answer

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

Answer

$$2x+3=0$$

Answer

$$3^2x+5y=0$$

Answer

$$x^2+y^2=25$$

Answer

$$x^3+4x^2-5x+4=0$$

Question 15

Bentuk umum persamaan kuadrat yang benar adalah...........

Accepted Answer

$$ax^2+bx+c=0$$

Answer

$$2x^2+bx+c=0$$

Answer

$$x^2+bx+c=0$$

Answer

$$ax^2+bx-c=0$$

Answer

$$ax^2-bx+c=0$$

Question 16

Diketahui persamaan kuadrat -x²+3x-4=0. Nilai a, b, dan c berturut-turut adalah

Accepted Answer

-1, 3 dan -4

Answer

1, 3 dan 4

Answer

-1, 3 dan 4

Answer

1, 3 dan -4

Answer

-1, -3 dan 4

Question 17

Bentuk pemfaktoran dari x²-5x+4=0 adalah

Accepted Answer

(x-4)(x-1)=0

Answer

(x+4)(x+1)=0

Answer

(x+4)(x-1)=0

Answer

(x+4)(x-1)=0

Answer

(x+2)(x-2)=0

Question 18

Akar-akar dari persamaan kuadrat 2x²-8x-10=0 adalah........

Accepted Answer

-1 dan 5

Answer

1 dan 5

Answer

1 dan -5

Answer

-1 dan -5

Answer

-1 dan -5

Question 19

persamaan kuadrat yang akar akarnya 2 dan -3 adalah........

Accepted Answer

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

Answer

$$4x^2-9=0$$

Answer

$$x^2-4x+4=0$$

Answer

$$x^2+2x+3=0$$

Answer

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

Question 20

Jika $$x_1\ dan\ x_2$$ adalah akar akar persamaan kuadrat $$x^2-8x+6=0$$ maka nilai dari $$x_1+x_2=.........$$

Accepted Answer

8

Answer

-14

Answer

-8

Answer

-2

Answer

6

Question 21

Hasil kali dari akar akar persamaan kuadrat $$2x^2+6x-1=0$$ adalah.......

Accepted Answer

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

Answer

-1

Answer

$$\frac{1}{2}$$

Answer

3

Answer

6

Question 22

Perhatikan sketsa grafik disamping. koordinat titik potong grafik dengan sumbu y adalah.........

Accepted Answer

(0, -2)

Answer

(-2, 0)

Answer

(2, 0)

Answer

(0, 2)

Answer

(-1, 0)

Question 23

Perhatikan sketsa grafik disamping. koordinat titik puncaknya adalah.........

Accepted Answer

(-2, -1)

Answer

(-1, -2)

Answer

(2, 1)

Answer

(1, 2)

Answer

(-1, 2)

Question 24

Perhatikan sketsa grafik disamping. koordinat titik puncaknya adalah.........

Accepted Answer

(-2, -1)

Answer

(-1, -2)

Answer

(2, 1)

Answer

(1, 2)

Answer

(-1, 2)

Question 25

Perhatikan sketsa grafik disamping. koordinat titik puncaknya adalah.........

Accepted Answer

(-2, -1)

Answer

(-1, -2)

Answer

(2, 1)

Answer

(1, 2)

Answer

(-1, 2)

Question 26

Berikut yang merupakan rumus kuadrat (rumus abc) adalah?

Accepted Answer

$$x1.2\ =\ \frac{-b\ \pm\sqrt{b^{2\ }-4ac}^{ }}{2a}$$

Answer

$$x1.2\ =\ \frac{b\ \pm\sqrt{b^{2\ }-4ac}^{ }}{2a}$$

Answer

$$x1.2\ =\ \frac{-b\ \pm\sqrt{b^{2\ }+4ac}^{ }}{2a}$$

Answer

$$x1.2\ =\ \frac{b\ \pm\sqrt{b^{2\ }+4ac}^{ }}{2a}$$

Question 27

Berikut yang merupakan rumus kuadrat (rumus abc) adalah?

Accepted Answer

$$x1.2\ =\ \frac{-b\ \pm\sqrt{b^{2\ }-4ac}^{ }}{2a}$$

Answer

$$x1.2\ =\ \frac{b\ \pm\sqrt{b^{2\ }-4ac}^{ }}{2a}$$

Answer

$$x1.2\ =\ \frac{-b\ \pm\sqrt{b^{2\ }+4ac}^{ }}{2a}$$

Answer

$$x1.2\ =\ \frac{b\ \pm\sqrt{b^{2\ }+4ac}^{ }}{2a}$$

Question 28

Nilai diskriminan persamaan kuadrat x² +6x+8 =0

Accepted Answer

4

Answer

2

Answer

8

Answer

36

Question 29

Nilai x₁+ x₂ dari persamaan x² - 15x + 14 adalah....

Accepted Answer

15

Answer

-15

Answer

14

Answer

-14

Question 30

pada persamaan x² + 9x - 21 = 0 , nilai-nilai akar x₁+x₂ adalah ... .

Accepted Answer

-9

Answer

11

Answer

10

Answer

9

Question 31

Pernyataan tentang hubungan antara diskriminan fungsi kuadrat dan grafik fungsi kuadrat berikut ini benar, kecuali...

Accepted Answer

Jika D = 0 maka grafik fungsi kuadrat tidak memotong sumbu x

Answer

Jika D > 0 maka grafik fungsi kuadrat akan memotong sumbu x di dua titik

Answer

Jika D = 0 maka grafik fungsi kuadrat akan memotong sumbu x di satu titik

Answer

Jika D < 0 maka grafik fungsi kuadrat tidak memotong sumbu x

Question 32

Tentukan nilai Diskriminan dari beberapa fungsi kuadrat $$y=x^2+2x+5.$$

Accepted Answer

-16

Answer

-15

Answer

-17

Answer

-18

Question 33

Tentukan nilai Diskriminan dari beberapa fungsi kuadrat $$y=x^2−3x+2$$

Accepted Answer

1

Answer

2

Answer

3

Answer

4

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics