Question

For what value of k the pair of linear equation X+2y=4and2x+ky=12 for the parallel line

Answer 1

Answer:

THE ANSWER IS 4.

Step-by-step explanation:

using , y =  mx + c

X + 2Y=4  .............(1)

2y = 4-x

y = 2-x/2

slope(m1) = 1/2

2X +  KY = 12 .............(2)

ky = 12-2x

y = 12/k -2x/k

slope(m2) = 2/k

for parallel line,

m1 = m2

1/2 = 2/k

so,k = 2×2

k = 4.

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