Question

the graphical representation of 2x-y+4=0 and 6x-ky+12=0 is coincident.Find the value of k​

Answer 1

Step-by-step explanation:

If it's coincident then it has only one solution

a1/A2 = B1/B2 = C1/C2

therefore,

2/6 = -k/12

2 X 12 / 6 = -k

-k = 4

K = - 4

Answer 2

Answer:

2x-y+4=0 and 6x-ky+12=0

1. 6x-ky+12=0
2. 2x-y+4=0

• 4x-k+8=0