Question

for what value of k will the following equations represent concident lines?2x+3y=4;4x+(k+4)y=3k+2​

Answer 1

Answer:

k=2

Step-by-step explanation:

put x = 1/2 , y = 1 in your equation..

then

2x + 3y = 4

2x1/2 + 3x1 =4

1 + 3 = 4

L.H.S = R.H.S (proof)

put your value of x and y in your 2nd equation

4x+(k+4)y = 3k+2

• 4x1/2 + k+4 = 3k+2
• 2+k+4 = 3k+2
• 2k = 4

k= 2