Question 841590
<pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
  5x=6   0r  x = 6/5   Vertical Line (Blue)
 -5y=10  0r   y = -2   Horizontal Line (Green)
Are they perpendicular?  yes
{{{drawing(300,300,   -6, 6, -6, 6, grid(1), blue(line(6/5,6,6/5,-6)) ,
graph( 300, 300, -6, 6, -6, 6,0,-2))}}}