Question

the pair of line equations represented the equation 2x +y +3 =0 and 4x+ky +6=0 has infinite solution value of k is​

Answer 1

Answer:

k=2  ; subscribe to my youtube channel #smtuitions

Step-by-step explanation:

2x + y +3 =0   ;  a1=2 , b1=1 , c1=3

4x + ky + 6 = 0 ; a2=4 , b2=k , c2=6

For infinite solution a1/a2=b1/b2=c1/c2

      2/4=1/k

=> 2k=4

=>k=4/2

=>k=2