Question 472438
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi,
 Note: D = {{{sqrt ((x[1]-x[2])^2+(y[1]-y[2])^2))}}}
Find the distance between the following points.
 (1, 3) and 
 (4, 7)   D={{{sqrt((-3)^2 + (-4)^2) = sqrt(25) = highlight(5)}}}