Question:
Find the distance of the point P(6, -6) from the origin.
Solution:
Distance of point $P(6,-6)$ from origin $(0,0)=$
$\sqrt{(0+6)^{2}+(0-6)^{2}}$
$=\sqrt{36+36}$
$=6 \sqrt{2}$ units
Therefore, the distance of the point $P$ from the origin is $6 \sqrt{2}$ units.