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GRAFIK FUNGSI KUADRAT KELAS 9

Authored by Betri Yenita

Mathematics

9th Grade

CCSS covered

Used 107+ times

GRAFIK FUNGSI KUADRAT KELAS 9
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10 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Berikut merupakan fungsi kuadrat, kecuali ... .

f(x)=3x26x+9f\left(x\right)=3x^2-6x+9

f(x)=(x1)2+4f\left(x\right)=\left(x-1\right)^2+4

f(x)=(2x22)(x213)f\left(x\right)=\left(2x^2-2\right)\left(x^2-13\right)

f(x)=(x+6)(x+9)f\left(x\right)=\left(x+6\right)\left(x+9\right)

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Grafik dari Fungsi kuadrat x2 adalah...

Media Image
Media Image
Media Image
Media Image

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

1. Jika grafik fungsi kuadrat y = x2 digeser 5 satuan ke atas , maka rumus fungsinya menjadi….

y = x2 – 5

y = x2 + 5

y = (x - 5)2

y = ( x + 5)2

y = x2 – 52

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Diketahui persamaan kuadrat 3x2 - 6x - 9 = 0, nilai a, b,dan c berturut- turut dari persamaan tersebut adalah

3, 6 dan 9

3, 9 ,dan 6

3, -6 , dan 9

3, 9 dan -6

3, -6 dan -9

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Titik potong dengan sumbu x grafik fungsi kuadrat pada gambar di samping adalah …

(-1, 0) dan (2 , 0)

(-1 ,0) dan ( 3, 0)

(0, -1 ) dan (0,2 )

(0, -1 ) dan (0, 3 )

(-1 ,1) dan ( 3, 1)

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Fungsi  f(x)=ax2+bx+cf\left(x\right)=ax^2+bx+c  berpotongan dengan sumbu-y di ....

(0,c)

(0,-c)

(c,0)

(-c,0)

Tags

CCSS.HSF-IF.C.7A

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Fungsi  f(x)=ax2+bx+cf\left(x\right)=ax^2+bx+c  memiliki nilai optimum ....

 y=b2+4ac2ay=-\frac{b^2+4ac}{2a}  

 y=b2+4ac4ay=-\frac{b^2+4ac}{4a} 

 y=b24ac2ay=-\frac{b^2-4ac}{2a} 

 y=b24ac4ay=-\frac{b^2-4ac}{4a} 

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