Answer:
k = 2
Step-by-step explanation:
9 = k(6) - 3
12 = 6k
We know that in the coordinates (6, 9) 6 is X and 9 is Y. So, we can just plug that into the equation in the problem to get 9 = 6k - 3. Then, after solving, we get the answer as k = 2.
