Question

For what value of k, for the equations 3x – y + 8 = 0 and 6x – ky = −16

represents coincident lines?​

Answer 1

Answer:

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

Step-by-step explanation:

The given equations are 3x-y+8=0 and 6x-ky+16 = 0. We have to find the point at which both the equations represent coincident lines.

For the lines to be coincident,

Substituting the values, we get

Either  or  

k = 2 or k = 2

Therefore for k = 2, both the equations represent coincident lines