Show that the line joining the points `(2,-3)and (-5,1)` is parallel to the line joining `(7,-1)` and (0,3)

Show that the line joining (2,-3) and (-5,1) is parallel to the line joining (7,-1) and (0,3).

Show that the line joining (2, -3) and (- 5,1) is : perpendicular to the line joining (4, 5) and (0, - 2).

Slope of the line joining (3,1) and (4,5) is :

Slope of the line joining (5,1) and (6,5) is :

Show that the line : through (2, - 3) and (-1, 2) is perpendicular to the line joining (3, 7) and (- 2, 4).

The slope of the line joining points (-4,5) and (0,7) is

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

Show that the line through the points : (4,7,8), (2,3,4) is parallel to the line through the points (-1,-2,1) and (1,2,5).

Show that the line through the points (4, 7, 8), (2, 3, 4) is parallel to the line through the points (– 1, – 2, 1), (1, 2, 5).

Show that the line : through (0, 0) and (2, 3) is parallel to the line through (2, 2) and (4, 5) .