Persamaan dan Fungsi Kuadrat

Quiz
•
Mathematics
•
9th Grade
•
Hard
diana din123
Used 7+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
Akar-akar dari persamaan x2 - 6x - 27 = 0 adalah ….
x = 9 atau x = -3
x = -9 atau x = 3
x = 9 atau x = 3
x = -9 atau x = -3
2.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Nilai optimum dari fungsi f(x) = 3x2 - 6x + 4 adalah ....
1
-1
7
-7
3.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Sumbu simetri dari fungsi f(x) = 4x2 - 2x + 4 adalah ....
1/4
-1/4
1/2
-1/2
4.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
Yang merupakan grafik fungsi kuadrat dari f(x) = x2 + 4x - 9 adalah ....
5.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
Fungsi kuadrat dari fungsi grafik tersebut adalah ....
f(x) = -2x2 + 4x - 1
f(x) = 2x2 - 4x + 1
f(x) = 4x2 - 8x + 2
f(x) = -4x2 - 8x + 2
6.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
Sebuah roket ditembakkan vertikal ke atas, tinggi roket setelah t detik dinyatakan dengan rumus :
h (t) = 80t − 5t2
Berapakah t yang dapat memaksimumkan tinggi roket tersebut?
30
60
16
8
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