Question 618409
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,Previously Posted
Find the slope of the line.  NO slope, this is a vertical Line
X=10
{{{drawing(300,300,   -6, 20, -6, 6,  blue(line(10,20,10,-20))  , grid(1),

graph( 300, 300, -6, 20, -6, -20))}}}