Question

if the point (k,3k) (3k,3k) (3,1) are collinear find k​

Answer 1

Answer:

k = 3 or 1/3

Explanation:

if the points are collinear

(k,3k)+(3k,3k)=(3k,3k)+(3,1)

(4k,6k)=( 3k+3,3k+1)

Now,

4k = 3k+3 = 4k-3k = 3

k = 3

6k = 3k+1 = 6k-3k = 1

3k = 1

k = 1/3