Activity 1 I. Find the center and radius of the given equation of the circle. 1. x2 + y2 = 200 2. (x + 6) 2 + (1 - 2) 2 = 256 3. x2 + (v + 1)2 = 72 4. x2+y2 -12x +8x - 8=0 5. x2+ y2-5x +3y-4=0 II. Determine the equation of the circle with the given data. 1. center: (-3,4) , radius: 12 units 2. center: (6,0) , radius: 4v5 units 3. center: (7, -4) , diameter: 12 units 4. center: (-3,4) , diameter: 10v3 units 5. center: (-3,4) , area: 35n square units