Question 624315
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
(2,3)
(0,0) m = 3/2 Green Line has slope m = 3/2, 
the Line Tangent at (2,3) would be perpendicular to the Green with m = -2/3 
{{{drawing(300,300,   -6, 6, -6, 6,   grid(1),
circle(0, 0,3.60555),
circle(2, 3,0.3),
circle(0, 0,0.3),

graph( 300, 300, -6, 6, -6, 6,0,1.5x ))}}}