Determine the values of a and b so thast the points `(a,b,3), (2,0,1) and (1,-1,-3)` are colinear.

If the points (a, b, c), (2, 0, -1) and (1, -1, -3) are collinear, then the value of a is

Show thast the points P(1,1,1),Q(0,-1,0),R(2,1,-1) and S(3,3,0) are coplanar.

Determine the values of x and y so that the line joining the points A(x,3,11),B(1,1,-2) is parallel to the line joining the points C(2,5,3),D(-4,y,-6).

The value of k for which the points A(0, 1), B(2, k) and C(4,-5) are colinear is:

The value of k for which the points A(0, 1), B(2, k) and C(4, -5) are colinear is :

For what values of k, the points (1,4), (k-2), and (-3,16) are colinear?

Find the value of p if the points A(2,-1,1),B(4,0,p),C(1,1,1) and D(2,4,3) are coplanar.

For what values of a and b points (1,1), ( 2, 3) (3,a) and (b,7) are collinear.

The points A(1,0,1),B(-1,2,3)andC(0,1,2) are

Determine the value of k so that the line joining points A(k,1,-1) and B(2,0,2k) is perpendicular to the line joining the points C(4,2k,1) and D(2,3,2) .