Question

Find the value of k for which the pair of linear equation 4 x + 6 Y - 1 is equal to 0 and 2x + k y - 7 is equal to zero represent parallel lines

Answer 1

4x + 6 y -1 = 2x + ky - 7

4x-2x = ky - 6y -7+1

2x=k-6-7+1

2x=k-12

x=k-12\2

x=k-6