
Fungsi Kuadrat
Authored by Rindi Ifayati
Mathematics
10th Grade
Used 2+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dibawah ini yang bukan merupakan fungsi kuadrat adalah
f(x)=x²+5x+10
f(x)=2x+5y
f(x)=2x²+8
f(x)=2x²+5x-7
f(x)=3x²-15x
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nilai a, b, dan c dari fungsi kuadrat f(x)=6x²+2x-10 adalah
a=6 , b=1 dan c=10
a=6 , b=2 dan c=-10
a=2 , b=6 dan c=-10
a=2 , b=1 dan c=-10
a=6 , b=-1 dan c=10
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Untuk mencari akar-akar fungsi kuadrat dapat dilakukan dengan cara berikut, kecuali...
Rumus abc
Melengkapi kuadrat sempurna
Pemfaktoran
Substitusi
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rumus diskriminan adalah....
D=b²-4b
D=b²-4ac
D=-2/a
D=b²-2a
D=-b/2a
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dibawah ini pernyataan yang benar adalah
D<0 terdapat 2 titik potong terhadap sumbu x
a<0 kurva terbuka keatas
a>0 kurva terbuka kebawah
D>0 terdapat 2 titik potong terhadap sumbu x
D=0 tidak ada titik potong terhadap sumbu x
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Fungsi kuadrat yang menggambarkan kurva terbuka keatas adalah....
f(x)=3x²+5x-10
f(x)=-3x²+7x+5
f(x)=-2x²+5x-10
f(x)=3x²+5x+2
f(x)=x²+5x-10
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Fungsi kuadrat berikut yang menggambarkan kurva terbuka kebawah adalah...
f(x)=x²+x-10
f(x)=3x²+x+5
f(x)=3x²+5x+2
f(x)=-x²+5x-10
f(x)=-2x²+5x+20
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