Answer: I think it’s a or d Im stuck sorry I couldn’t help
Step-by-step explanation:
Answer:
(x²-6x)+(y²+8y)=-21
(x²-6x+9)+(y²+8y+16)=-21+9+16
(x-3)²+(y+4)²=4
center=(3,-4),radius=√4=2
7x + 14
.9