Question 389996
   <pre><font size = 3 color = "indigo"><b>
Hi,        
diffrence between y = 2 and x = 3
 y =2  green line 'parallel' to x = axis
 x = 3 blue line 'perpendicular' to the x -axis
{{{drawing(300,300,-10,10,-10,10,blue(line(3,10,3,-10)),grid(1),graph(300,300,-10,10,-10,10,0,2))}}}