Persamaan Kuadrat Kelas 9
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Standards-aligned
Samuel S.Pd
Used 927+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diketahui persamaan kuadrat 3x2 - 8x + 1 = 0. Nilai diskriminan persamaan tersebut adalah ....
76
64
54
52
Tags
CCSS.HSA-REI.B.4B
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nilai diskriminan persamaan kuadrat -x2 + 2x - 16 = 0 adalah ...
68
60
-60
-68
3.
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
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diketahui persamaan kuadrat x2 - mx + 3-m = 0. Jika persamaan kuadrat tersebut mempunyai dua akar real kembar, nilai m yang memenuhi adalah ...
-6 atau 2
4 atau -3
-4 atau 3
6 atau -2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Akar-akar persamaan kuadrat x2 + 11x + 30 = 0 adalah p dan q. Nilai p dan q berturut-turut adalah ...
6 dan 5
6 dan -5
-6 dan 5
-5 dan -6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hasil kali usia Danang dan Ria adalah 180 tahun. Usia Ria 3 tahun lebih muda daripada Danang. Usia Danang adalah ...
18 tahun
15 tahun
12 tahun
9 tahun
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Panjang alas segitiga ABC adalah x cm. Tinggi segitiga tersebut adalah 4 cm kurang dari alasnya. Jika luas segitiga ABC 160 cm2, tinggi segitiga ABC adalah ...
24 cm
20 cm
16 cm
14 cm
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