Titik (a, b) adalah pusat lingkaran
x2 + y2 – 2x + 4y + 1 = 0. Jadi 2a + b = …
Persamaan Lingkaran
Quiz
•
Mathematics
•
1st Grade
•
Hard
Kikin Novia Riskadewi
Used 19+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Titik (a, b) adalah pusat lingkaran
x2 + y2 – 2x + 4y + 1 = 0. Jadi 2a + b = …
0
2
3
-1
-2
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Persamaan garis singgung melalui titik (2, 3) pada lingkaran x2 + y2 = 13 adalah …
2x – 3y = 13
2x+3y=-13
2x+3y=13
3x-2y=-13
3x+2y=13
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Persamaan garis singgung lingkaran
x2 + y2 – 6x + 4y – 12 = 0 di titik (7, 1) adalah …
3x-4y-41=0
4x+3y-55=0
4x-5y-53=0
4x+3y-40=0
4x-3y-40=0
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Persamaan garis singgung lingkaran
x2 + y2 – 6x + 4y +11 = 0 di titik (2, –1) adalah …
x-y-12=0
x-y-4=0
x-y-3=0
x+y-3=0
x+y+3=0
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Persamaan lingkaran yang melalui titik (3,-2) dan memiliki titik pusat (3,4) ialah . . .
x² - y² - 6x - 8y - 11 = 0
x² + y² - 6x - 8y - 11 = 0
x² + y² - 6x - 8y + 25 = 0
x² - y² - 3x - 4y - 11 = 0
x² - y² - 4x - 5y - 10 = 0
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui persamaan lingkaran x² - 6x + y² + 6 = 0 di sumbu Y. Berapakah jarak antara titik pusat lingkarannya?
1
2
3
4
5
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jari-jari dan pusat lingkaran yang memiliki persamaan x2 + y2 + 4x − 6y − 12 = 0 adalah...
5 dan (−2, 3)
5 dan (2, −3)
6 dan (−3, 2)
6 dan (3, −2)
7 dan (4, 3)
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