Question

if the lines given by 2x+2ky=2 and 2x+5y+1=0 are parallel then the value of k is
-5/4
2/5
5/2
3/2
Other:
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Answer 1

Answer:

hope this helps

Step-by-step explanation:

we have to find k such that a1/a2 = b1/b2 ≠ c1/c2

2/2 = 2k/5 ( a1/a2 = b1/b2)

2k = 5/1

k = 5/2

now,

2*5/5*2 is unequal to 2/1

therefore, answer is c)