Points A and B have coordinates (7, -3) and (1, 9) respectively. Find
(i) the slope of AB.
(ii) the equation of the perpendicular bisector of the line segment AB.
(iii) the value of āpā if (-2, p) lies on it.
Solution:

The points B (1, 3) and D (6, 8) are two opposite vertices of a square ABCD. Find the equation of the diagonal AC.
Solution:

More Solutions:
- The slope of a line parallel to y-axis is.
- Line passing through the points (0, -4) and (-6, 2).
- Line passing through the points (3, -2) and (3, -4).
- The points (2, 5) and (k, 3) is 2, then the value of k.
- Line passing through the points (2, 5) and (-3, 6).
- The slope of a line perpendicular to the line 3x = 4y + 11.