Jawab:
Penjelasan dengan langkah-langkah:
(x+3)² + (y+6)² = 6²
x²+6x+9 + y²+12y+36 = 36
x²+y²+6x+12y+9 = 0
Gambar dulu koordinat dg pusat P (3,6) maka jari2nya adalah 6
Semoga membantu
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Jawab:
Penjelasan dengan langkah-langkah:
(x+3)² + (y+6)² = 6²
x²+6x+9 + y²+12y+36 = 36
x²+y²+6x+12y+9 = 0
Gambar dulu koordinat dg pusat P (3,6) maka jari2nya adalah 6
Semoga membantu
x = 3
y = 6
r = 6
Titik pusat :
x = -1/2 A
3 = -1/2 A
A = 3 : (-1/2)
A = 3 × (-2)
A = -6
y = -1/2 B
6 = -1/2 B
B = 6 : (-1/2)
B = 6 × (-2)
B = -12
Persamaan lingkaran :
x^2 + y^2 + Ax + By + C = 0
<=> x^2 + y^2 - 6x - 12y + 9 = 0 (B)
atau
(x - 3)^2 + (y - 6)^2 = 6^2
x^2 - 6x + 9 + y^2 - 12y + 36 = 36
x^2 + y^2 - 6x - 12y + 9 = 36 - 36
x^2 + y^2 - 6x - 12y + 9 = 0 (B)