Circle S has an equation of (x – 16)2 + (y + 9)2 = 4. What is the center and radius of circle S?

Center: (16, -9); Radius: 4
Center: (-16, 9); Radius: 2
Center: (16, -9); Radius: 2
Center: (-16, 9); Radius: 4

Question

Circle S has an equation of (x – 16)2 + (y + 9)2 = 4. What is the center and radius of circle S? 

Center: (16, -9); Radius: 4 
Center: (-16, 9); Radius: 2 
Center: (16, -9); Radius: 2 
Center: (-16, 9); Radius: 4

anonymous · Answer

$$Is \it : (x-16)^2+(y+9)^2=4 $$

anonymous · Answer

The standard form of circle is $$(x-h)^2+(y-k)^2=r^2 $$ where h and k are centre of circle and r is radius. now u can compare and will get ur answer