Question

Equations 3x-y=9, 6x-ky=-18 represent coincident lines for​

Answer 1

Answer:

when k = 2

Step-by-step explanation:

And there's a small mistake in your question. it should be either 18 (instead of -18) or -6x (instead of... well you get it)!

If it's -6x then the answer is k = 2

Here you go!

Answer 2

Answer: Hey dood!

Equations 3x-y=9, 6x-ky=-18 represent coincident lines for​ k = 2.

Step-by-step explanation: bcoz A1/A2= B1/B2= C1/C2 for the coincident lines. This is also given in ncert 10th mathematics , you can also check it out from there. Hope it helped you