for every point `(x,y,z)` on the y-axis: (A) `x=0,y=0` (B) `x=0,z=0` (C) `y=0,z=0` (D) `y!=0,x=0,z=0`

The equation of y-axis are (A) x=0,y=0 (B) x=0,z=0 (C) y=0,z=0 (D) none of these

For every point P(x ,\ y ,\ z) on the xy-plane, a. x=0 b. y=0 c. z=0 d. x=y=z=0

For every point P(x ,\ y ,\ z) on the xy-plane, a. x=0 b. y=0 c. z=0 d. x=y=z=0

For every point (x\ , y ,\ z) on the x- axis (except the origin) a. x=0,\ y=0,\ z!=0 b. x=0,\ z=0,\ y!=0 c. y=0,\ z=0,\ x!=0 d. x=y=z=0

The equation of the righat bisecting plane of the segment joiningteh points (a,a,a) and (-a,-a,-a),a!=0 is (A) x+y+z=a (B) x+y+z=3a (C) x+y+z=0 (D) x+y+z+a=0

What is the locus of a point for which (i) x =0, y =0 (ii) y =0, z =0 (iii) z =0, x =0 (iv) x =a, y =b (v) y =b, z =0 (vi) z =c, x =a ?

The equation of the plane containing the line 2x+z-4=0 nd 2y+z=0 and passing through the point (2,1,-1) is (A) x+y-z=4 (B) x-y-z=2 (C) x+y+z+2=0 (D) x+y+z=2

What is the jocus of a point a point for which (i) x =0, y =0 (ii) y =0 , z =0 (iii) z =0, x =0 (iv) x =a, y =a (v) y =b, z =c (vi) z =c, x =a ?

The equation of the plane passing through the intersection of the planes x+2y+3z+4=0a dn 4x+3y+2z+1=0 and the origin ils (A) 3x+2y+z+1=0 (B) 3x+2y+z=0 (C) 2x+3y+z=0 (D) x+y+z=0

A plane through the line (x-1)/1=(y+1)/(-2)=z/1 has the equation (A) x+y+z=0 (B) 3x+2y-z=1 (C) 4x+y-2z=3 (D) 3x+2y+z=0