Question

the distance of the point P( 5 , -3) from the x axis is

Answer 1

See on x axis y coordinate is zero

also since it perpendicular distance hence x coordinate will remain same that is 5

So the point on the x axis is ( 5 , 0 )

Using distance formula :-

$d = \sqrt{( - 3 - 0) {}^{2} + (5 - 5) {}^{2} } \\ d = \sqrt{9 + 0} \\ d = \sqrt{9} \\ d = 3 \: units$