Question

If the lines given by 2x + ky = 1 and 3x – 5y = 7 are parallel, then the value of k is ……​

Answer 1

Answer:

slope m1 = -2/k

slope m2 = 3/5

as both the lines are parallel

then

m1 = m2

-2/k = 3/5

k/-2 = 5/3

k/2 = -5/3

k = -10/3