Make a plot connecting the coordinates: (2; 6); (2:5; 18); (5; 17:5); (4:2; 12:5) and (2; 12) by a line.

• (1) Make a plot connecting the coordinates: (2; 6); (2:5; 18); (5; 17:5); (4:2; 12:5) and (2; 12) by a line.
• Matlab code