> with(plots):

Warning, the name changecoords has been redefined

> A:= implicitplot({y^2 - x^3 = 0}, x = -8..8, y = -25..25, numpoints = 10000, thickness=3):B:=implicitplot({y=1.2*x, y = 1.6*x, y=2.0*x, y=2.4*x, y = 2.8*x, y = 3.2*x}, x = -8..8, y = -25..25,color=blue):C:=implicitplot(x=1, x = -8..8, y = -25..25, color = black, thickness=3):

> display(A, B, C);

>