The line `(x-x_1)/0=(y-y_1)/1=(z-z_1)/2` is (A) parallel to x-axis (B) perpendicular to x-axis (C) perpendiculat to YOZ plane (D) parallel to y-axis

The line x=x_1,y=y_1 is (A) parallel to x-axis (B) parallel to y-axis (C) parallel to z-axis (D) parallel to XOY plane

The line x=1,y=2 is (A) parallel to x-axis (B) parallel to y-axis (C) parallel to z-axis (D) ies in a plane parallelto xy-plane.

The plane x+y=0 (A) is parallel to y-axis (B) is perpendicular to z-axis (C) passes through y-axis (D) none of these

The straight line (x-3)/(3)=(y-2)/(1)=(z-1)/(0) is (a)Parallel to x-axis (b)Parallel to the y-axis (c) Prallel to the z-axis (d)Perpendicular to the z-axis

Equation of line parallel to X-axis and Y-axis

In three dimensional geometry ax+by+c=0 represents (A) a plane perpendicular to z-axis (B) a plane perpendicular to xy plane (C) a straighat line on xy plane (D) a plane parallel to z-axis

The lines (x-1)/2=(y-2)/3=(z-3)/4 and (x-1)/3=(y-2)/4=(z-3)/5 are (A) parallel to x-axis (B) skew (C) intersecting (D) none of these

The equation y^2+3=2(2x+y) represents a parabola with the vertex at: (1/2,1) & axis parallel to x-axis (1,1/2) & axis parallel to x-axis (1/2 , 1) & focus at (3/2,1) (1/2,1) & axis parallel to y-axis.

A straight line with direction cosines (0,1,0) is (a) parallel to x -axis (b) parallel to yaxis (c) parallel to z-axis (d) equally inclined to all the axes