What is the value of k for equation 2x+ky=7, 4x+8y=14 will represent coincident lines
Answers
Answered by
38
2x+ky-7=0 --------------(1)
4x+8y-14=0 ------------(2)
Since (1) and (2) are two coincidental lines then,
2/4=k/8=-7/-14
or, k=4
4x+8y-14=0 ------------(2)
Since (1) and (2) are two coincidental lines then,
2/4=k/8=-7/-14
or, k=4
Answered by
6
Answer:
k is 4
Step-by-step explanation:
2x+ky=7
4x+8y=14
condition:
a1/a2=b1/b2=c1/c2
2/4=k/8=7/14
therefore k is 4
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