Question

Find the distance between each of the following pairs of points.
$L(5,-8),M(-7,-3)$

Answer 1

$d(L,M)=\sqrt{(-7-5{)}^2+(-3-(-8){)}^2}$

$\therefore d(L,M)=\sqrt{(-12{)}^2+(5^2)}$

$\therefore d(L,M)=\sqrt{144+25}$

$\therefore d(L,M)=\sqrt{169}$

$\therefore d(L,M)=13$