persamaan dan fungsi kuadrat kelas 9 2020

Quiz
•
Mathematics
•
9th Grade
•
Medium
aji wibowo
Used 184+ times
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25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Perhatikan persamaan-persamaan berikut!
(i) 2x2 – 5 = 0
(ii) 2x2 + 3x3 = 0
(iii) 3x + 6 = 0
(iv) 3x2 + 5x + 9 = 0
Yang merupakan persamaan kuadrat adalah….
(i) dan (ii)
(i) dan (iii)
(ii) dan (iv)
(i) dan (iv)
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Persamaan 2x (x + 5) = 3x – 4 jika diubah ke bentuk umum persamaan kuadrat adalah….
2x2 – 7x + 4 = 0
2x2 + 7x + 4 = 0
– x2 + 7x + 4 = 0
x2 – 7x + 4 = 0
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Faktor dari 3x2 – 6x = 0 adalah….
3x(x – 3) = 0
3x(x – 2) = 0
3(x2 – 2)
3(x2 – 2x)
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Salah satu faktor dari x2 – 7x + 12 adalah….
x – 2
x – 3
x + 3
x + 4
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Nilai diskriminan dari persamaan kuadrat 2x2 – 3x – 5 = 0 adalah….
– 31
20
29
49
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Agar persamaan kuadrat 4x2 – 12 x + p = 0 memiliki akar kembar, maka nilai p = ….
– 9
– 3
3
9
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
ika salah satu akar dari persamaan kuadrat x2 + 3 x + c = 0 adalah 2, maka nilai c yang memenuhi adalah….
– 10
– 5
5
10
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