> with(plots):

Warning, the name changecoords has been redefined

> A:=implicitplot(y^2 = x^3, x = -1..2, y = -4..4, numpoints=10000, thickness=2, color=blue):l1:=implicitplot(y+0.01, x = -1..2, y = -4..4, color=red, thickness=3):

> display(A, l1);

>