" If the points "(k,2k),(3k,3k)" and "(3,1)" are "

If the points (k , 2k) , (3 k , 3k ) and (3 , 1) are collinear . Then k is

If the points (k,k),(2 , 3) and (4 , -1) are collinear then k = ........

If the points A(k,2k) B(2k,3k) C(3,1) are collinear then k = ......... .

Find the value of k if the points (k+1,1),(2k+1,3) and (2k+2,2k) are collinear.

(i) If the points (1,4),(3,-2)and (k,1) are collinear, fine the value of k. (ii) If the points A(k+1,2k),B(3k,2k+3)andC(5k-1,5k) are collinear, then find k

the value of k for which the points (3k-1,k-2),(k,k-7) and (k-1,-k-2) are collinear.