Equations of Circles

• Center: (1, -2), Radius: 12

• Center: (1, 2), Radius: 11

• Center: (-2, 0), Radius: 121

• Center: (0, -2), Radius: 121

• Center: (0, -2), Radius: 11

• (14, 5)

  r=2

• (-14, -5)

  r=2

• (14, 5)

  r=16

• (-14, -5)

  r=16

• (-14, -5)

  r=4

• (x+12)^2 + (y+5)^2 = 9
• (x+13)^2 + (y+14)^2 = 1
• (x-3)^2 + (y-16)^2 = 1
• (x-3)^2 + (y-5)^2 = 131

• 3
• 1
• sqrt(131)
• 9
• 131
• 1 (again)

• (3, 5)
• (-3, -5)
• (26, 28)
• (3, 16)
• (-12, -5)
• (-13, -14)