6. Recreate the image, with the points, in Maple. 

>
 

> A := [0, 1]; 1; B := [3, 10]; 1; C := [9, 11]; 1; E := [20, 20]
 

 

 

 

Typesetting:-mprintslash([A := [0, 1]], [[0, 1]])
Typesetting:-mprintslash([B := [3, 10]], [[3, 10]])
Typesetting:-mprintslash([C := [9, 11]], [[9, 11]])
Typesetting:-mprintslash([E := [20, 20]], [[20, 20]]) (4.6.1)
 

> with(plots); -1
 

> Pts := pointplot([A, B, C, E], symbolsize = 20, symbol = solidcircle);
 

Plot_2d
 

> crv := plot(f(x), x = -5 .. 25, y = -5 .. 25, discont = true);
 

Plot_2d
 

> display(crv, Pts);
 

Plot_2d
 

>