Question 630312
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
Line perpendicular to x = 10, passing through the Pt(x,y): (-3, 7)
x = 10 is a vertical Line
New Line passing through the Pt(x,y): (-3, 7)needs to be a Horizontal Line: y = 7

{{{drawing(300,300,   -6, 12, -6, 8,  blue(line(10,12,10,-6))  , grid(1),
circle(-3, 7,0.3),

graph( 300, 300, -6, 12, -6, 8,0,7))}}}