Question

Find k so that the equation has no solution 4x+ky+8=0&2x+2y+2=0​

Answer 1

we know,

a1/a2 = b1/b2 not equal to c1/c2

Now,

a1 = 4, a2 = 2, b1 = k, b2 = 2

4/2 = k/2

2 = k/2

k = 4