Show that the line joining (5, 6) and (2,3) is parallel to the line through `(9, -2) and (6, -5)`.

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,-5) and (-2, 5) is perpendicular to the line joining (6,3) and (1,1).

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

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

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

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

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

Show that the line joining the points (4,5) and (1,2) is parallel to the line joining the points (9,-2) and (12,1) .

If the line through (3,y) and (2,7) is parallel to the line through (-1,4) and (0,6), then the value of y is (i) -9 (ii) -8 (iii) 8 (iv) 9

Show that the line joining the points (4,-1) and (-3,3) is parallel to the line joining the points (8,0) and (1,4) .