Show that the points A(5, 4, 2), B(6, 2, -1) and C(8, -2, -7) are collinear.

Show that the point A(-2, 4, 7), B(3, -6, -8) and C(1, -2, -2) are collinear.

Show that the points A(1, -2, -8), B(5, 0, -2) and C(11, 3, 7) are collinear, and find the ratio in which B divides AC.

Using the distance formula, show that the points A(3, -2), B(5, 2) and C(8, 8) are collinear.

Using slopes, show that the points A(6, -1), B(5, 0) and C(2, 3) are collinear.

Using slopes, show that the points A(0,5) , B(3,2) and C(-1,6) are collinear.

Using direction ratios show that the points A(2,3,-4), B(1,-2,3) and C(3,8,-11) are collinear.

Using section formula, show that the points A(1, 2, 1), B(2, 1, 0) and c(7/5, 8/5, 3/5) are collinear.

Show the equation of the points A (-7 , 4, - 2) , B (-2, 1,0) and C (3, -2, 2) are collinear .

(i) Using section formula, show that the points A(-2, 3,5), B(1,2,3) and C(7,0,-1) are collinear. (ii) Using division formula, prove that the points (2,3,4),(-1,-2,1) and (5,8,7) are collinear.

Show that the point A (1,-1,3), B ( 2,-4,5) and C ( 5,-13,11) are collinear.