If the lines given by 3x + 2ky = 2, 3x + 5y = −1 are parallel, then the value of k is:
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Correct answer: B
Explanation
Given:
3x + 2ky = 2
3x + 5y = −1
According to the formula:
a₁/b₁ = a₂/b₂
3 / 2k = 3 / 5
1 / 2k = 1 / 5
2k = 5
k = 5/2