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: 4

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

Answer 1

Equation of circle is
(x+16)^2+(y-9)^2=4
[x-(-16)]^2+(y-9)^2=2^2
centre is (-16,9) and radius is 2

Answer 2

thanks