Question

1.
Circle P has a radius of 8 units with center P at (-2, 1). Which equation defines circle P? (2 points)

(x + 2)2 + (y – 1)2 = 8
(x – 2)2 + (y + 1)2 = 8
(x + 2)2 + (y – 1)2 = 64
(x – 2)2 + (y + 1)2 = 64

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

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

3.
Circle A has an equation of x2 + (y + 3)2 = 16. Where is the center of the circle located? (2 points)