Question No. 8 And Question No. 4

Lesson#6
Question No. 8
Q.8. Two pairs of points are given. Find whether the two lines determined by these points are:
(i) Parallel
(ii) Perpendicular
(iii) None
(a) (1, -2), (2, 4) and (4, 1), (-8, 2)
(b) (-3, 4), (6, 2) and (4, 5), (-2, -7)
Question No. 4
Q.4. Find "k" so that the line joining A(7, 3); B(k, -6) and the line joining C(-4, 5); D(-6, 4) are:
(i) Parallel
(ii) Perpendicular.
Introduction to Analytical Geometry
Chapter No 4
Exercise No 4.3
Mathematics
part 2