Find the value(s) of k so that PQ will be parallel to RS. Given :
(i) P (2, 4), Q (3, 6), R (8, 1) and S (10, k)
(ii) P (5, -1), Q (6, 11), R (6, -4k) and S (7, k2)
Since, PQ || RS,
Slope of PQ = Slope of RS
(i) Slope of PQ =
Slope of RS =
(ii) Slope of PQ =
Slope of RS =