Tolong dibantu ya buat pr terima kasih
Jawaban Terkonfirmasi
X² + y² + Ax +By + C = 0
x² + y² + 8x + 2py + 9 = 0
r = √(1/4 A² + 1/4 B² – C)
r² = 1/4 A² + 1/4 B² – C
16 = 1/4 (8)² + 1/4 (2p)² – 9
16 = 16 + p² – 9 → p = 3
x² + y² + 8x + 6y + 9 = 0
P (-1/2 A, -1/2 B)
= P (-1/2 (8), -1/2 (6)) = P (-4, -3)
Jawaban: D.
