Question 814301
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
{{{y=x^2 +1 }}}  y' = 2x , at x=1, m = 2, 
tangent Line is (y-2) = 2(x-1) 0r  y = 2x 
The normal line to a curve perpendicular to the tangent:  
 (y-2) = (-1/2)(x-1)  {{{y = -(1/2)x + 5/2 }}}
{{{drawing(300,300,   -6, 6, -6, 6,  grid(1),
circle(1, 2,0.2),

graph( 300, 300, -6, 6, -6, 6,0, x^2+1, 2x, (-1/2)x + 5/2))}}}