Question

in each of the following find the value of k for which the points are collinear (7 - 2) (5,1)(3,k)​

Answer 1

Answer:

K=4

Step-by-step explanation:

1/2[7(1-k) + 5(k+2) + 3(-2-1)]=0

7-7k +5k + 10 -6 -3 =0

-2k +8 = 0

-2k = -8

k= 4 ( required ans)