SUMATIF BAB III FUNGSI KUADRAT

Quiz
•
Mathematics
•
9th Grade
•
Hard
AA MUHAMAD ZULKARNAEN
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
2.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Koordinat titik puncak grafik fungsi y = 4x2 + 12x + 6 adalah ....
(1½ , 3)
(1½ , -3)
(-1½ , 3)
(-1½ , -3)
3.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Sketsa grafik fungsi kuadrat yang sesuai untuk f(x) = -x2 + 2x adalah...
4.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Grafik fungsi y = -9x2 + 12x + 6 memotong sumbu y di titik ....
(0,-6)
(0,6)
(6,0)
(-6,0)
5.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Tinggi maksimum balon udara dalam waktu x yang dapat dinyatakan dalam bentuk fungsi f(x) = -16x2 +112x - 91 adalah...
-105
105
-287
287
6.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
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
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Pernyataan tentang hubungan antara diskriminan fungsi kuadrat dan grafik fungsi kuadrat berikut ini benar, kecuali...
Jika D > 0 maka grafik fungsi kuadrat akan memotong sumbu x di dua titik
Jika D = 0 maka grafik fungsi kuadrat akan memotong sumbu x di satu titik
Jika D < 0 maka grafik fungsi kuadrat tidak memotong sumbu x
Jika D = 0 maka grafik fungsi kuadrat tidak memotong sumbu x
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