Write the distance of a point P(a, b, c) from x-axis.
Given,
The point is (a,b,c). Let this point be P.
From the figure, point E (a,0,0) is the projection of point P(a,b,c) on the x-axis.
The distance between the points P & E will give the distance of the point P from x-axis.
Distance between two points is given by
Here
a1 =a , b1 =b , c1=c and a2 =a , b2 =0 , c2 = 0
Distance between P and x-axis is
Therefore the distance between, the x-axis and the Point P (a,b,c) is units.