Question 414302
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Hi
Determine whether the graphs of the equations are perpendicular lines. 
x= -3  (blue line)
y=  5  (green line)
{{{drawing(300,300,   -6, 6, -6, 6,  blue(line(-3,6,-3,-6))  , grid(1),
circle(-3, 5,0.3),
graph( 300, 300, -6, 6, -6, 6,0,5))}}}