1. Himpunan penyelesaian persamaan kuadrat x²+4x+4= 0 adalah ....
UJIAN SEMESTER GANJIL MAPEL MATEMATIKA KLS XI T.A 2019/2020

Quiz
•
Mathematics
•
11th Grade
•
Hard
Sri Ulang Sari
Used 11+ times
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A. {-1}
B. {1}
C. {-2}
D. {2}
E. {-3}
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2. Persamaan Kuadrat yang akar-akarnya -4 dan 2 adalah ....
A. x² + 2x + 2 = 0
B. x² + 2x - 8 = 0
C. x² - 2x + 8 = 0
D. x² - 2x - 8 = 0
E. x² + 2x + 8 = 0
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3. Sifat-sifat akar dari persamaan kuadrat 2x² + 8x - 12 = 0 adalah ....
A. Real berkebalikan
B. Real sama (kembar)
C. Real berlawanan
D. Real berlainan
E. Imajiner
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4. Jika a dan b adalah akar-akar dari persamaan kuadrat x² + x - 6 = 0, maka a+b = ....
A. - 1
B. 0
C. - 2
D. 2
E. 1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5. Jika X1 dan X2 adalah akar-akar persamaan kuadrat x² + 5x + 6 = 0, maka persamaan kuadrat yang akar-akarnya 1/X1 dan 1/X2 adalah ....
A. x² - 5x + 6 = 0
B. x² - 5x - 6 = 0
C. 6x² + 5x + 1 = 0
D. x² + 5x + 6 = 0
E. 6x² - 5x + 1 = 0
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6. Persamaan sumbu simetri dari grafik fungsi f(x) = 4 + 3x - x2 adalah ....
A. x = - 1 1/2
B. x = 3/4
C. x = 1 1/3
D. x= -3/4
E. x = 1 1/2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
7. Koordinat titik balik dari grafik fungsi kuadrat y = x2 - 4x - 12 adalah ....
A. (2,8)
B. (2, -8)
C. (16,-8)
D. (2, -16)
E. (8,16)
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