Question

For what value of k the pair of linear equations kx-4y=3, 6x-12y=9 has infinite no of soln

Answer 1

To get the value of k we must at least find a value of x and y.

Let, x = 1
then,
6x - 12y = 9
6(1) - 12y = 9
6 - 12y = 9
-12y = 9 -6
-12y = 3
y = 3/-12
y = 1/-4

So, if x = 1 then y = 1/-4

kx -4y =3
k(1) - 4(1/-4) =3
k + 1 = 3
k = 3 - 1
k = 2

Therefore k = 2 to get infinite number of solutions

Answer 2

Answer:

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