PH Persamaan dan Fungsi Kuadrat
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Titin Deniwati
Used 8+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
Diketahui persamaan kuadrat x2 - 9 = 0. Pernyataan yang benar adalah ....
Persamaan kuadrat mempunyai dua akar real dan kembar
Persamaan kuadrat mempunyai dua akar real dan saling berkebalikan
Persamaan kuadrat mempunyai dua akar real dan saling berlawanan
Persamaan kuadrat mempunyai dua akar real dan berlainan tanda
2.
MULTIPLE CHOICE QUESTION
2 mins • 6 pts
Salah satu akar persamaan kuadrat x2 - x - 42 = 0 adalah ....
-7
- 6
6
9
3.
MULTIPLE CHOICE QUESTION
2 mins • 6 pts
Persamaan kuadrat x2 - 18x + 45 = 0 mempunyai akar-akar p dan q. Nilai p dan q berturut - turut adalah ....
- 3 dan 15
- 3 dan 5
3 dan 5
3 dan 15
4.
MULTIPLE CHOICE QUESTION
2 mins • 6 pts
Nilai Diskriminan dari persamaan kuadrat -3x2 + 5x - 4 = 0 adalah ....
- 48
- 23
63
73
5.
MULTIPLE CHOICE QUESTION
1 min • 6 pts
Akar - akar persamaan kuadrat x2 - 10x + 20 = 0 adalah p dan q. Hasil Jumlah kedua akar tersebut adalah ....
- 10
10
2
- 2
6.
MULTIPLE CHOICE QUESTION
2 mins • 6 pts
Persamaan kuadrat x2 + 6x = 7 dengan melengkapkan kuadrat sempurna dapat dinyatakan dalam bentuk ….
(x + 3)2 = 16
(x + 3)2 = 9
(x - 3)2 = 16
(x - 3)2 = 9
7.
MULTIPLE CHOICE QUESTION
2 mins • 8 pts
Luas sebidang tanah yang berbentuk persegi panjang adalah 414 m2. Jika lebar tanah tersebut 5 m kurang dari panjangnya, keliling tanah adalah …. m
120
90
82
72
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