dy/dx = k[(b-y)^2]
dy/dx=k*b^2*y^2 *(1/y-1/b)^2
dx=(1/y^2)dy/[kb^2(1/y-1/b)^2]
=-d(1/y)/ [kb^2(1/y-1/b)^2]
x=1/ [kb^2(1/y-1/b)]
x/y = x/b + 1/[k*b^2]
dy/dx = k[(b-y)^2]
dy/dx=k*b^2*y^2 *(1/y-1/b)^2
dx=(1/y^2)dy/[kb^2(1/y-1/b)^2]
=-d(1/y)/ [kb^2(1/y-1/b)^2]
x=1/ [kb^2(1/y-1/b)]
x/y = x/b + 1/[k*b^2]