tolong dibantu ya buat pr terima kasih

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.