Selections B and D both appear to be appropriate. B) (x+8)² + (y+5)² = 13 D) (x+8)² + (y+5)² = 13
_____ The center is at the midpoint of the diameter, ((-10-6)/2, (-8-2)/2) = (-8, -5). For center (h, k) and radius r, the equation is (x -h)² +(y -k)² = r² (x -(-8))² +(y -(-5))² = (√13)² (x+8)² + (y+5)² = 13
