Question 627923
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
Let L1 be the line {{{y[1]=x+2}}}} 
Let L2 be a parallel line which passes through the point (0,4). {{{ y[2] = x + 4}}}
What is the shortest distance from L1 to L2? 
Let{{{highlight(x)}}} be the length of the sides of the right isoseles triangle shown: 2x^2 = 2^2,  {{{x =sqrt(2)}}} 
{{{drawing(300,300,   -6, 6, -6, 6,  grid(1),
circle(0, 4,0.3),
circle(0, 2,0.3),
circle(1, 3,0.3),
blue(line(0,4,1,3)),
graph( 300, 300, -6, 6, -6, 6,0,x+2,x+4))}}}