d = 4
a: ((d - x) * y^(2)) = x^(3)
g(x, y) = (x^(2) * y^(3)) - x
f(x, y) = ((d - x) * y^(2)) - x^(3) + 1
Text1 = LaTeX(f, true, true)
k = 4 (slider from -5 to 5, step 1)
b(x, y) = ((x^(2) + y^(2)) * (y - 2)^(2)) - (k^(2) * y^(2))