1. Perhatikan persamaan-persamaan berikut!
(i) 2x2 – 5 = 0
(ii) 2x2 + 3x3 = 0
(iii) 3x + 6 = 0
(iv) 3x2 + 5x + 9 = 0
yang merupakan bentuk persamaan kuadrat
Persamaan kuadrat dan Fungsi Kuadrat
Quiz
•
Mathematics
•
3rd Grade
•
Hard
Rini Suprapti
Used 4+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1. Perhatikan persamaan-persamaan berikut!
(i) 2x2 – 5 = 0
(ii) 2x2 + 3x3 = 0
(iii) 3x + 6 = 0
(iv) 3x2 + 5x + 9 = 0
yang merupakan bentuk persamaan kuadrat
(i) dan (ii)
(i) dan (iii)
(i) dan (iv)
(ii) dan (iv)
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2. Salah satu faktor dari x2 – 7x + 12 adalah…
x - 2
x - 3
x + 3
x + 4
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
3. Nilai diskriminan dari persamaan kuadrat 2x2 – 3x – 5 = 0 adalah….
49
31
29
20
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
4. Akar – akar persamaan kuadrat x2 –x - 6 = 0 adalah….
real dan berbeda
real dan sama
tidak real
tidak dapat ditentukan
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
5. Akar akar dari persamaan kuadrat x2 + 5 x + 6 = 0 adalah
-2 dan -3
-2 dan 3
-3 dan 2
3 dan 4
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
6. Bentuk umum fungsi kuadrat f(x)= ax2 + bx + c = 0 jika f(x) = x2 + 4x – 30 = 0 maka nilai a,b,c berturut turut
2,4,30
1,4,30
1,4, -30
-1,4,-30
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
7. Sumbu simetri dari jika f(x) = x2 + 4x – 30 = 0 adalah ....
2
-2
4
-4
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