
latihan kelas 9
Authored by FRISKILIA MAHARANI
Mathematics
9th Grade - University

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13 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
2.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diketahui persamaan kuadrat 3x2 - 8x + 1 = 0. Nilai diskriminan persamaan tersebut adalah ....
76
64
54
52
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Persamaan berikut yang mempunyai dua akar real berbeda adalah ...
6x2 + 8x + 5 = 0
3x2 + x + 5 = 0
2x2 + 3x - 5 = 0
-x2 + 6x - 9 = 0
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hasil x1+x2 dan x1.x2 secara berturut-turut dari persamaan kuadrat x2 - 5x - 36 adalah ...
-5 dan -36
5 dan 36
-5 dan 36
5 dan -36
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Perhatikan pernyataan berikut.
(i) 4x2 – 9 = (2x + 3)(2x – 3 )
(ii) 2x2 + x – 3 = (2x – 3)(x + 1)
(iii) x2 + x – 6 = (x + 3)(x – 2)
(iv) x2 + 4x – 5 = (x – 5)(x + 1)
Pernyataan yang benar adalah …
(i) dan (ii)
(i) dan (iii)
(ii) dan (iii)
(ii) dan (iv)
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Koordinat titik puncak grafik fungsi y = 4x2 + 12x + 6 adalah ....
(1½ , 3)
(1½ , -3)
(-1½ , 3)
(-1½ , -3)
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