Question 663715
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
4x+18=-2x   0r  
6x + 18 = 0
  6x = -18
   x = -3, a vertical line.  Slope is undefined. 
 x=intercept is at (x,y) ordered pair (-3,0)
Question states*** 
{{{drawing(300,300,   -6, 6, -6, 6,  blue(line(-3,6,-3,-6))  , grid(1),
circle(-3, 0,0.3),
graph( 300, 300, -6, 6, -6, 6))}}}

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