Terletak dimanakah Titik Fokus dan Titik Puncak Parabola?
Parabolic Quizzes

Quiz
•
Mathematics
•
12th Grade
•
Medium
Fitriyah Nabila
Used 1+ times
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 5 pts
Di Garis Direktris
Di sumbu X
Di Sumbu Y
Di Sumbu Simetri
2.
MULTIPLE CHOICE QUESTION
10 sec • 5 pts
Manakah di bawah ini yang merupakan bentuk umum persamaan parabola yang bertitik puncak di (0,0) dan memiliki sumbu simetri di sumbu-Y ?
x2 = 4py
y2 = 4px
(x - h)2 = 4p (y - k)
(y - k)2 = 4p (x - h)
3.
FILL IN THE BLANK QUESTION
30 sec • 5 pts
Tentukan koordinat Titik Puncak Parabola dengan persamaan (y - 5)2 = 12 (x - 3)
4.
FILL IN THE BLANK QUESTION
1 min • 5 pts
Tentukan koordinat titik Fokus dari Parabola dengan persamaan :
(y - 2)2 = 8 (x - 3)
5.
FILL IN THE BLANK QUESTION
1 min • 5 pts
Tentukan persamaan direktris dari parabola dengan persamaan :
(y - 2)2 = 8 (x - 3)
6.
OPEN ENDED QUESTION
5 mins • 3 pts
Tentukan persamaan parabola yang memiliki Titik Puncak (2 , 4) dan Titik Fokus (-3 , 4) !
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Answer explanation
Titik puncak di (2 , 4) berarti h = 2 dan k = 4
Titik fokus di (-3 , 4) karena k = 4, maka titik fokus memiliki formula F (h+p, k), sehingga h + p = - 3 , p = -3 - h = - 3 - 2 = -5, jadi p = - 5.
Selanjutnya untuk parabola dengan F (h+p , k) dan puncak (h,k) maka bentuk persamaannya :
(y - k)2 = 4p (x - y) --> (y - 4)2 = -20 (x - 2)
7.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Tentukan nilai p pada persamaan :
y2 = - 20x
p = - 4
p = - 5
p = -20
p = - 10
8.
MULTIPLE CHOICE QUESTION
30 sec • 7 pts
Tentukan persamaan direktris dari persamaan parabola :
x2 = 28y
x = 28
x = - 7
y = - 4
y = - 7
9.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Tentukan Titik Puncak dari persamaan parabola :
(x + 3)2 = 12 (y - 4)
(3 , - 4)
(3 , 4)
(- 3 , 4)
( -3 , - 4)
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