Show that the points `(4,-2), (2,-4), (7,1)` are collinear.

Show that the points (3,4), (-5, 16), (5,1) are collinear.

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

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

Show that the points (1,-1),(5,2) and (9 ,5) are collinear.

Show that the points (1,-1),(5,2) and (9 ,5) are collinear.

Using slopes, show that the points (4,11) , (1,5) and (-1,1) are collinear.

Show that the points (1, 1), (2, 3) and (5, 9) are collinear.

Show that the points (2,3,4),(-1,-2,1),(5,8,7) are collinear.

Show that the points (2,3,4),(-1,-2,1),(5,8,7) are collinear.

Prove that the points (4,3),(1,4)and (-2,5) are collinear. Also find out the equation of the straight line on which these points lie.