Question

for what value of K , the following system of equation will represent the coincidence line : 2x+4y +14=0 , 4x +2ky+ 28 =0 hoon​

Answer 1

Answer

k=2

Step-by-step explanation:

for coincident lines a1/a2=b1/b2=c1/c2

a1=2     a2=4

b1=4     b2=2k

c1= 14     c2= 28

2/4=4/2k=14/28

$\frac{2}{4}=\frac{2}{2k}=\frac{1}{2} \\4k=8with \frac{a1}{a2} =\frac{b1}{b2}\\k=\frac{8}{4} =2$

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