Question

3x-y+8=0 and 6x-ky=-16 represent co incident lines

Answer 1

Step-by-step explanation:

Answer: For k = 2, the two equations 3x-y+8=0 and 6x-ky=-16 represent coincident lines

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Answer 2

Step-by-step explanation:

Given equations is 3x−y+8=0 and 6x-ky=16

For coincident lines, 63=−k−1

⇒21=k1

⇒k=2

For option A:

3k−9=32−9=0

which satisfies R.H.S.

Now for option B:

2k−8=22−8=4−8=−4

it will not satisfy RHS

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