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Latihan Fungsi Kuadrat Kelas 9

Authored by Lia Nur Anggraeni, M.Pd.

Mathematics

9th Grade

Used 42+ times

Latihan Fungsi Kuadrat Kelas 9
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15 questions

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1.

MULTIPLE CHOICE QUESTION

10 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)

2.

MULTIPLE CHOICE QUESTION

10 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} 

3.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Sketsa grafik fungsi kuadrat yang sesuai untuk f(x) = -x2 + 2x adalah...

Media Image
Media Image
Media Image
Media Image

4.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

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

(0,-6)

(0,6)

(6,0)

(-6,0)

5.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Media Image

Sebuah fungsi kuadrat melalui titik puncak (2,0). Jika fungsi kuadrat tersebut melalui titik (0,4), maka persamaan fungsi kuadrat tersebut adalah....

f(x)=x2 + 4x + 4

f(x)=x2 - 4x + 4

f(x)=x2 - 4x - 4

f(x)=x2 + 2x + 4

6.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Jika nilai koefisien x2 lebih besar dari 0, maka bentuk grafik fungsi kuadrat yang sesuai adalah...

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7.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Koordinat titik puncak grafik fungsi y = 4x2 + 12x + 6 adalah ....

(1½ , 3)

(1½ , -3)

(-1½ , 3)

(-1½ , -3)

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