a = 1.85
b = 2
O = (0, 0)
c: (x^(2) + y^(2))^(2) = ((2 * b^(2)) * (x^(2) - y^(2)))
f: ((x - 7)^(2) + (y - 1)^(2))^(2) = ((2 * b^(2)) * ((x - 7)^(2) - (y - 1)^(2)))
d: ((x - 3)^(2) + (y - 1)^(2))^(2) = ((2 * b^(2)) * ((y - 1)^(2) - (x - 3)^(2)))
M = (3, 1)
S = (7, 1)