Answer:
Distance of point P(3,0) from x axis is zero as this point lies on x axis.
distance of point Q is 3.
Distance of point R is 4.
Distance of point S is 3.
Explanation:
Point P already lies on x axis as its y coordinate is zero so its distance from x axis is zero
distance of points Q , R and S is the absolute value of their y coordinates that is 3 , 4 and 3 respectively.