Show that the point (1,2,4),(3,8,8) and (7,20,16) are collinear.

Show that the points (1, 4), (3, - 2) and (- 3,16) are collinear and find the equation of the st. line an which they lie.

Show that the points (-2,3,5), (1,2,3) and (7,0,-1) are collinear.

Show by direction numbers that the points (-2,4,7),(3,-6,-8) and (1,-2,-2) are collinear.

Using vectors, prove that the point A(1,2), B(3,8) and (-3,-10) are collinear.

The points (1, 2, 3), (-2, 3, 4) and (7,0,1) are collinear.

Using distance formula, show that the points (1,5), (2,4) and (3,3) are collinear.

Show that the points A(1,2,7), B(2,6,3) and C(3,10,-1) are collinear.

Using section formula show that the points (1,-1), (2, 1) and (4, 5) are collinear.

Show that the points A(3,5,1), B(-1,0,8) and C(7,10,-6) are collinear.