Question

Find the distance between the two ponit (1,1) and(4,3)

Answer 1

whole root( X2- X1 ) + (Y2- Y1) is your formula
and your soln is
= root (4-1)+(3-1)
= root 3+2
= root 5 is your answer... which is distance between two different points..

Answer 2

use distance formula
$\sqrt{(x2 - x1) {}^{2} +( y2 - y1 ) {}^{2} }$
answer is root 13 hope it helps you