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FUNGSI KUADRAT 9

Authored by rifa hasuki

Mathematics

9th Grade

CCSS covered

Used 18+ times

FUNGSI KUADRAT 9
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20 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Sumbu simetri kurva fungsi  y=x28x+12y=x^2-8x+12  kuadrat  adalah …

 x=2x=2  

 x=3x=-3  

 x=4x=4  

 x=5x=-5  

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Titik puncak dari kurva fungsi kuadrat                      y=x2+4x5y=x^2+4x-5   adalah …

 (2,9)\left(-2,-9\right)  

 (4,5)\left(-4,5\right)  

 (2,9)\left(2,9\right)  

 (4,3)\left(4,-3\right)  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Fungsi kuadrat   y=x2+2x+24y=-x^2+2x+24  memiliki kurva …

terbuka ke atas

terbuka ke kanan

terbuka ke bawah

terbuka ke kiri

Tags

CCSS.HSF-IF.C.7A

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Sumbu simetri dari kurva fungsi kuadrat y=x210x+25y=x^2-10x+25 adalah …

10

 10-10  

5

 25-25  

5.

MULTIPLE CHOICE QUESTION

5 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} 

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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

(1½ , 3)

(1½ , -3)

(-1½ , 3)

(-1½ , -3)

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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

(0,-6)

(0,6)

(6,0)

(-6,0)

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