FUNGSI KUADRAT HOTS KELAS IX A

Quiz
•
Mathematics
•
9th Grade
•
Medium
siti sundari
Used 30+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Nilai p terkecil yang memnuhi fungsi kuadrat -2x +p > 3 berikut ini adalah....
3
4
5
6
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Gambar di samping menunjukkan persegi panjang ABCD dimana AB= 4 cm, AD= 6 cm, dan AP = DQ = CR=BS= x cm. Jika L(x) mewakili luas segiempat PQRS, maka luas minimum PQRS adalah....
12,5 cm2
11,5 cm2
10,25 cm2
13 cm2
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika f(x )= ax2 +bx + c memiliki kurva seperti pada gambar di bawah, maka pernyataan yang benar adalah....
a < b < c
a < c < b
b < a < c
b < c < a
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika grafik di bawah ini dinyatakan dalam bentuk y = ax2 + bx + c maka syarat yang harus dipenuhi adalah....
a < 0
D > 0
> 0
c = 0
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika f(x ) = px2 + r mempunyai grafik seperti di atas, maka....
p > 0, r > 0
p > 0, r < 0
p < 0, r > 0
p > 0, r < 0
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Untuk memproduksi sepotong roti diperlukan biaya produksi yang dinyatakan oleh fungsi B ( x ) = 6x -60 + ( dalam ratusan rupiah). Biaya minimum yang diperlukan untuk memproduksi x potong roti adalah....
Rp 45.000,00
Rp 32.000,00
Rp 16.500,00
Rp 10.000,00
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Grafik fungsi y = ( a- 3 ) x2 + 2ax + a + 2 menyinggung sumbu x di titik p dan memotong sumbu y di titik q. Panjang garis pq adalah....
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